Terms of Service

For the provision of electronic services — "Völundr", a platform for building applications using an artificial intelligence model

Effective date: 20 July 2026

Binding version. These Terms exist in a Polish and an English version. Under § 20(9), the Polish version is the binding one; this English text is provided for information only. In case of any discrepancy, the Polish version prevails.

§ 1. General Provisions

These Terms of Service (the "Terms") set out the rules and conditions for the provision of electronic services by Järnhaus through the "Völundr" website available at https://volundr.dev and its test environments.
The Terms are made available free of charge on the Platform in a form that allows the User to read, download, store, and print them.
These Terms constitute a standard contract form within the meaning of Article 384 of the Polish Civil Code.
The Provider may issue Technical Specifications, an FAQ, a Privacy Policy, a Cookie Policy, and other documents supplementing the Terms. In the event of any inconsistency, the Terms shall prevail, unless a supplementary document expressly provides otherwise.
Registering an Account is equivalent to the User's acceptance of the provisions of the Terms. If the User does not accept the Terms in whole or even in part, the User is required to immediately stop using the Platform.
The Platform uses the Claude language model provided by Anthropic, PBC, as well as other third-party models. Use of the Platform constitutes the User's acceptance of Anthropic's terms of use, available at https://www.anthropic.com/legal/aup (or its current equivalent), to the extent that they govern the manner of using the AI models. The Provider is not liable for changes to the terms of use of third-party AI models.

§ 2. Definitions

Anthropic – Anthropic, PBC, the provider of the Claude language model used by the Platform.
Application – software in the form of one or more Docker containers together with the runtime configuration, generated by the Platform on the basis of a Prompt.
Consumer – a User who is a natural person performing a legal act not directly related to their business or professional activity.
Account – an individual account on the Platform enabling use of the Platform and of the services provided through it.
AI Model – the Claude language model used by the Platform.
Pipeline or AI Pipeline – an automated, multi-agent sequence of steps (Analyst → Architect → Developer → Tester) used to generate and deploy an Application using the AI Model.
Platform – the "Völundr" website available at https://volundr.dev.
Prompt – a set of instructions, commands, guidelines, or input data provided by the User on the Platform for the purpose of generating an Application.
Entrepreneur with consumer rights – a natural person entering into a contract related to their business activity where the contract does not have a professional character for that person. The provisions concerning Consumers apply to this category accordingly and only to the extent indicated by law.
GDPR – Regulation (EU) 2016/679 of the European Parliament and of the Council of 27 April 2016 on the protection of natural persons with regard to the processing of personal data and on the free movement of such data, and repealing Directive 95/46/EC (General Data Protection Regulation).
Specification – a document describing the properties and technical parameters of the Application.
Hosting Service – an optional, paid service for maintaining and making the Application available on the Internet.
Provider or Järnhaus – the entity operating the Platform and providing the Services, i.e. Marek Rybka, Tax ID (NIP): 7831831894, Business Registry Number (REGON): 388307456, ul. Krótka 54/2, 60-185 Skórzewo, Poland.
User – any natural person, legal person, or organizational unit using the Platform.
Professional User (B2B) – a User who is neither a Consumer nor an Entrepreneur with consumer rights; the Provider excludes or limits its liability towards such User to the fullest extent permitted by law.
Material Defect – a defect that prevents the Application from launching, or that significantly limits a key functionality of the Application consistent with the Specification. The following are not considered a Material Defect: aesthetic errors, differences in appearance from the User's expectations, differences in the Application's operation resulting from an incorrect or imprecise Prompt, inaccuracies of the AI Model, problems arising from the operation of external services independent of Järnhaus, or matters not covered by the Specification.
Change Request (CR) – a paid order to modify an existing Application in accordance with the User's guidelines, except for the first five modifications of the Application, which are provided free of charge.

§ 3. Type and Scope of Services Provided Through the Platform

Through the Platform, the Provider provides the following electronic services (jointly, the "Services"):
1. enabling the creation and maintenance of a free Account on the Platform;
2. enabling the User to enter a Prompt in order to generate an Application;
3. enabling the User to generate an Application through the AI Pipeline on the basis of the Prompt entered by the User, following the User's acceptance of the quote, payment, and crediting of the funds to the Provider's bank account;
4. providing the User with access to the generated Application, including the ability to download its source code and related documentation, in particular the Specification;
5. providing the paid Hosting Service in accordance with the price list currently in effect on the Platform;
6. enabling the purchase of Change Request (CR) packages.
The Provider reserves the right to modify, suspend, or discontinue any of the Services at any time, subject to the requirements of generally applicable law.
The Platform uses third-party AI Models. The Provider does not control and does not guarantee the quality, availability, or output of these models. Any problems with the availability of AI models constitute a cause attributable to a third party and do not entitle the User to a refund of fees, except for the Refund Guarantee described in § 11 of these Terms.
The User acknowledges that the Platform is a system that uses AI Models, and that the output generated by the AI Pipeline may be imperfect and may require verification and further adjustment. The Provider does not guarantee that the generated Application will be free of defects, errors, or security vulnerabilities, that it will comply with the laws applicable to the User, or that it will be fit for the User's specific purpose without the need for further modifications.
A User who intends to deploy the Application on their own using the downloaded source code is required to carry out, at their own cost and risk, appropriate functional testing and a security audit before launching it, in particular before making it available to end users. The Provider is not liable for any consequences of launching the Application without such prior verification, including for damage suffered by end users.

§ 4. Technical Conditions

Use of the Platform requires: a stable Internet connection, a current browser supporting HTML5/JS (Chrome, Firefox, Edge, Safari), and an active e-mail address.
The Platform is provided "as is", without any guarantee of continuous availability or uninterrupted operation, except for the SLA commitment described in § 10(5) of the Terms.
The Provider reserves the right to carry out maintenance downtime, infrastructure migrations, and modifications to the Platform's interface without prior notice, provided that they do not affect Application-generation orders already completed or the User's active Hosting Service.
The Provider is not liable for any harm resulting from the incompatibility of the User's device, network configuration, security policies, or the actions of the User's Internet service provider.
The Provider makes efforts to ensure that the Platform meets the digital accessibility requirements arising from Directive (EU) 2019/882 (the European Accessibility Act), to the extent that these provisions apply to the Platform.
Users who encounter accessibility barriers when using the Platform may report them to the Provider at the address indicated in § 19 of the Terms. The Provider undertakes to review the report within a reasonable time and, to the extent technically feasible and economically justified, to take appropriate remedial action.
The Provider does not guarantee full digital accessibility of every element of the Platform, in particular content generated by AI models, which by its nature may not meet all accessibility criteria. The User acknowledges and accepts the resulting limitations.

§ 5. Registration and Account

Registration is voluntary and free of charge. The User guarantees the accuracy and currency of all data provided. The Provider does not verify the data and is not liable for the consequences of the User providing false data, including for the inability to deliver correspondence.
The User is solely responsible for keeping their login credentials confidential and for all actions taken using their Account, including by third parties who gained access to the Account as a result of the User's negligence.
A single User may hold only one Account. The Provider may permanently delete all Accounts created in breach of the above prohibition.
The Provider may suspend or delete an Account without notice, in particular in the event of: suspected abuse, actions harmful to other Users or to the Platform, breach of the rules set out in these Terms, breach by the User of the rights of third parties, breach of generally applicable law, or User inactivity lasting more than 24 (twenty-four) months. Suspension or deletion of the Account does not entitle the User to a refund of fees for services not yet performed, nor to any other compensation from the Provider.
Use of the Platform and the conclusion of contracts through it is permitted only for persons who have reached the age of 18. A minor may use the Platform only with the prior written consent of their legal representative; acceptance of the Terms by a minor natural person without such consent is ineffective on its own. By registering an Account, the User represents that they have reached the age of 18 or hold the appropriate consent of their legal representative. The Provider reserves the right to immediately delete the Account and cancel all orders if it has reasonable grounds to suspect that the User does not meet the above requirement, without refunding any fees paid.

§ 6. Using the Platform and Concluding the Contract

Using the Platform to generate an Application involves the following stages:
1. Account registration – using the Platform requires first creating an Account in accordance with the rules set out in § 5 of the Terms.
2. Submitting a Prompt – the User describes their idea or requirements for an Application in the form of a Prompt, providing information about its functionality, purpose, and expected features in as much detail as possible. The quality and level of detail of the Prompt has a direct effect on the resulting quote and on the scope of the generated Application.
3. Quote and description of the Application – on the basis of the Prompt, the Platform generates a quote for the Application, assigning it to one of the available pricing variants, and prepares a description of the planned Application. The quote and description are presented to the User before the contract is concluded.
4. Acceptance of the offer and payment – the User may accept the quote presented or withdraw from the process. Acceptance of the quote is equivalent to placing an order and results in redirection to the payment process. The contract for the generation of the Application is concluded once the payment has been credited.
5. Generating the Application and the test (staging) environment – once payment has been credited, the Platform begins generating the Application. Upon completion of the process, the User receives a link to a test (staging) environment, allowing them to verify the operation of the Application. The test environment remains active for 7 (seven) days from the date it is made available. After this period, if the User has not carried out the production deployment, the test environment expires and the Application may be deleted.
6. Production deployment and the optional Hosting Service – once the test environment period ends, the User receives the full source code of the Application together with technical documentation (the Specification), which the User may use on their own without any time limitations. Regardless of the above, the User may make use of the Provider's optional Hosting Service, which allows the Application to be deployed and published on the Internet and made available to end users. The terms of the Hosting Service are set out in § 10 of the Terms, and the price list in § 7 of the Terms.
The contract is concluded at the moment the payment is confirmed by the payment operator, Stripe (Stripe, Inc. / Stripe Payments Europe, Ltd.).
The User's approval of the description of the Application referred to in item 1(3) above is an essential element of the contract and limits the scope of the Provider's obligation solely to the content of that description. Any expectations communicated outside the description, or after its approval, are not binding on the Provider.
The quote referred to in item 1(3) above is binding on both parties and may not be changed once accepted by the User.
In the event of suspected abuse, or of an order to generate an Application that cannot be carried out for technical or legal reasons (in particular due to infringement of third-party rights), the Provider reserves the right to cancel the order or delete the Application (if production deployment has already taken place) without giving a reason. In such a case, the Provider will refund the full amount paid by the User within 14 days.
The Platform sends confirmation of the Application-generation order by e-mail. Any failure to deliver the confirmation (e.g. as a result of the User providing an incorrect e-mail address) does not affect the validity of the contract.

§ 7. Prices and Payments

Price list for the services offered through the Platform:
- One-time fee for generating an Application:
  - Simple Application: EUR 49.00
  - Standard Application: EUR 99.00
  - Complex Application: EUR 149.00
- Optional Hosting Service (monthly subscription): EUR 15.00 / month
- Change Request (CR) packages:
  - Starter package: EUR 25.00 (10 CRs)
  - Standard package: EUR 35.00 (15 CRs)
  - Pro package: EUR 55.00 (20 CRs)
The prices indicated above are gross prices in Euro (EUR). The Provider may change the prices at any time, provided that the change takes effect from the date the updated price list is published. A change in prices does not affect orders paid for before the date of the price-list change.
Payments are processed by a third party, the payment operator Stripe (Stripe, Inc. / Stripe Payments Europe, Ltd.), using the payment methods offered by that operator. Processing of payments is subject to Stripe's own terms and policies, available at stripe.com/legal.
The Provider is not a party to the payment relationship between the User and Stripe and does not process the User's payment data (in particular payment card data).
The Provider is not liable for: refusal of authorization or rejection of a transaction by Stripe or by the issuer of the User's payment instrument; delays in crediting payments resulting from the operation of Stripe's systems, banks, or other financial institutions; interruptions, errors, or unavailability of Stripe's payment infrastructure; damage resulting from unauthorized access to the User's payment data; changes to Stripe's offering, payment methods, or pricing for its services.
In matters concerning the course of a payment transaction, the release of funds withheld by the payment operator, or complaints relating to the payment service itself, the User should contact Stripe directly, or their bank or the issuer of their payment instrument. The Provider will use reasonable efforts to support the User, in justified cases, in resolving the matter with the payment operator, but without any guarantee of achieving a particular outcome.
The User undertakes not to misuse refund procedures available through Stripe, or other transaction-dispute mechanisms (in particular chargeback and dispute procedures, and refunds initiated by the card issuer), in a manner inconsistent with the actual course of the transaction or the facts. In particular, the User undertakes not to initiate such procedures where: the User accepted the quote and the description of the Application and made payment; the Application has been made available to the User in the test environment, or the User has downloaded the Application's source code.
If the User initiates a chargeback procedure or another transaction-dispute mechanism without a reasonable factual or legal basis, the Provider is entitled to: suspend or permanently block the User's Account with immediate effect; permanently delete the Application created by the User through the Platform, or block access to the Application; block access to the Hosting Service; seek compensation from the User for the harm suffered, including in particular reimbursement of the amount subject to the unjustified chargeback, fees charged to the Provider by Stripe in connection with the dispute, and other documented costs incurred in connection with handling the dispute.
The User is required to report any disputes regarding the proper performance of a Service to the Provider in the first instance, under the complaint procedure set out in § 11 of the Terms, before taking any action through the payment operator or the issuer of the payment instrument.
VAT invoices are issued at the User's request, or automatically once a Tax ID/VAT ID is provided during the payment process.

§ 8. Generating the Application – the AI Pipeline

Stages of the AI Pipeline: Analyst (analysis of the Prompt and Specification), Architect (technical architecture design), Developer (code generation), Tester (automated testing, staging deployment). The estimated total completion time is 5 to 30 minutes.
The completion times given are estimates only and do not constitute a binding deadline. The completion time depends on the complexity of the Prompt and of the Application being designed, the current load on the infrastructure, and the current availability of the AI models used by the Platform. Delays in completing individual stages do not entitle the User to claims or to a refund of any fees.
After the AI Pipeline completes, the User has 7 (seven) days — the period for which the test (staging) environment remains available under § 6(1)(5) — to carry out the production deployment. After this period, if the User has not carried out the production deployment, the test environment expires, the Application may be deleted, and the fee paid is non-refundable, given that the Application (source code and Specification) has already been delivered.
The result of the completed order is an Application made available to the User in two forms: (i) as a working test (staging) environment accessible at a unique URL for a period of 7 (seven) days, allowing the Application to be verified before further use and deployment, and (ii) as full source code together with technical documentation (the Specification), provided to the User for free use. Use of the Provider's Hosting Service, which allows the Application to be published on the Internet, is optional and requires a monthly subscription on the terms set out in § 10 of the Terms.
The Application is provided "as is". The Provider does not guarantee that it will meet the User's expectations. Any discrepancies that do not constitute a Material Defect do not entitle the User to demand a refund of fees paid.
The Provider reserves the right to cancel the order or delete the Application (if production deployment has already taken place), without the User being entitled to demand a refund of fees paid, if it turns out that the order or the Application violates the law, the rights of third parties, or the Provider's interests.

§ 9. Ownership of the Application and Rights to the Application

Upon payment for the generation of the Application, the Provider grants the User a non-exclusive, territorially unlimited, perpetual license to use the Application on all fields of exploitation relevant to software within the meaning of Article 74 of the Polish Act on Copyright and Related Rights, including the right to use, modify, copy, distribute, and sublicense it. The license does not cover the rights to the Völundr or Järnhaus name, brand, or other designations.
The User acknowledges that the Application is generated, in whole or in part, using language (AI) models, in particular models made available by Anthropic. In connection with the above:
1. the User undertakes not to mislead third parties as to the authorship of the Application by claiming that it is exclusively the result of human work, to the extent that such a claim could violate applicable law or the policies of AI model providers;
2. the User acknowledges that transferable copyright to the Application may not be available in full, due to the involvement of AI in the creative process, depending on the current state of the law in the User's relevant jurisdiction (the Provider gives no guarantees in this regard);
3. the legal risk associated with the use of the Application, including its further distribution and commercialization, rests solely with the User.
The User undertakes that neither the Application nor any service or product built on its basis will be used for purposes: that are inconsistent with generally applicable law, including laws on the protection of personal data, consumer law, financial law, or sector-specific regulations; that infringe the rights or personal interests of third parties, including generating misleading content, spreading disinformation, or unfairly using the likeness of third parties; that are prohibited by the terms of use of the AI models used by the Platform, in particular by Anthropic's usage policies available at anthropic.com/legal/aup, as in effect on the date the Application is used.
The User represents and warrants that the materials provided to the Provider in the course of carrying out the Application-generation order (descriptions, wireframes, data, content) do not infringe the intellectual property or other rights of third parties, and that the User is entitled to use them for the purpose of creating the Application. The User grants the Provider a non-exclusive license to use these materials to the extent necessary to perform the order. The Provider is not liable for infringements of intellectual property rights resulting from materials or instructions provided by the User.
The Provider may, without additional remuneration, use anonymized data relating to the Application (not including the User's personal data or confidential information) for the purposes of improving the Platform, training and evaluating AI models, and for demonstration and marketing purposes.
The User does not acquire any rights to the AI models, algorithms, internal tools, technical infrastructure, or other elements of the Platform owned by the Provider, Anthropic, or other third parties.
If a third party asserts claims against the Provider concerning infringement of intellectual property or other rights in connection with the Application, the Provider is entitled to immediately suspend the availability of the Application and related services until the dispute is resolved. If the claim results from materials or instructions provided by the User, the User is required to indemnify the Provider and to cover all documented costs incurred by the Provider in connection with defending against such a claim, including legal representation costs.
The Provider is not liable to law enforcement authorities, regulatory authorities, or any third parties for the manner in which the User uses the Application. The User is solely responsible for ensuring that their activity carried out using the Application complies with applicable law, including obtaining any required permits, licenses, or regulatory approvals.

§ 10. Hosting Service

The Hosting Service is an optional service allowing the Application to be published on the Internet and made available to end users. Use of the Hosting Service is not a condition for receiving the Application – the source code, together with technical documentation (the Specification), is provided to the User regardless of the User's decision whether or not to use the Hosting Service.
The Hosting Service is activated at the User's request. The subscription renews automatically every month. The User may cancel the subscription at any time. Cancellation of the Hosting Service takes effect from the first day of the next billing period. The fee for a month already begun is non-refundable.
After the Hosting Service is cancelled, the User is entitled to a 14-day grace period, during which the Application remains available on the Internet. After the grace period expires, the hosting environment is deactivated and the Application may be permanently deleted by the Provider, which does not entitle the User to demand a refund of any fees paid.
The Provider reserves the right to:
1. change the hosting infrastructure, cloud provider, and environment parameters without prior notice to the User, provided that the change does not cause unavailability exceeding the SLA level set out in item 5 below;
2. immediately suspend or permanently disable the Hosting Service in the event of: the User being in arrears with the subscription payment for a period exceeding 7 days; a finding that the hosted Application violates the law, the rights of third parties, or the terms of use of the AI models used by the Platform; the Provider receiving a request to remove content or suspend services from law enforcement authorities, regulatory authorities, or other authorized third parties; a finding that the Application generates network traffic or infrastructure load that grossly exceeds the norms applicable to the given subscription plan, or that threatens the stability of the Provider's infrastructure.
The availability level of the hosting environment (SLA) is at least 99% per calendar month, measured excluding: (i) planned maintenance downtime, of which the User will be notified at least 24 (twenty-four) hours in advance, (ii) downtime resulting from circumstances for which the Provider is not responsible, in particular failures of cloud infrastructure providers, DDoS attacks, or force majeure, and (iii) suspensions made under item 4(2) above. The User's sole remedy for a breach of the SLA is, upon written request submitted within 14 (fourteen) days of the end of the month in which the breach occurred, a proportional billing credit applied to the next subscription period. The Provider excludes all other liability for damages arising from interruptions in availability, including liability for lost profits, loss of data, or damage suffered by end users of the Application.
The User acknowledges and accepts that the Provider acts solely as a provider of hosting infrastructure and does not control the content, functionality, or manner of operation of the hosted Application. In connection with the above:
1. the User is solely responsible for the hosted Application's compliance with applicable law, including laws on the protection of personal data (GDPR), consumer law, copyright law, and sector-specific regulations relevant to the field in which the Application operates;
2. the User undertakes to hold all legally required consents, permits, and policies (in particular a privacy policy and terms of service) necessary for the lawful provision of services through the hosted Application to its end users;
3. the User undertakes to promptly remove or modify the Application at the Provider's request in the event that a breach referred to in item 4(2) above is found. Failure to comply with this obligation within 24 hours of the request entitles the Provider to disable the Application without further warning and without any right to compensation on the part of the User;
4. the User undertakes to indemnify the Provider against all liability towards third parties and public authorities arising from the operation of the hosted Application, and to cover all documented costs incurred by the Provider in connection with claims brought against it in respect of the operation of the User's Application, including legal representation costs.
Given that the User always receives the full source code of the Application, and that the Hosting Service is solely an optional (additional) service, the Provider is not liable for any consequences of the hosting environment being disabled (including in particular as a result of the User's breach of the Terms), including for the Application's unavailability to end users.
The test (staging) environment is made available solely for verification purposes and remains active for the period indicated in § 6(1)(5) of the Terms. The Provider gives no guarantees regarding the availability or data integrity of the staging environment and is not liable for its unavailability or for the loss of data within it. Given that the User is provided with the full source code of the Application, that code constitutes the only reliable backup copy of the Application.

§ 11. Refund Guarantee and Complaints

Refunds:

The User is entitled to a refund of the fee paid only where the AI Pipeline ends in a technical failure attributable to the Provider that prevents completion of any of the stages of the process. The refund is made automatically to the account from which payment was made, within 5–10 business days of the failure being identified.
The User is not entitled to a refund of the fee paid, in particular, where:
1. the User failed to carry out a timely production deployment within the 7-day test-environment period under § 6(1)(5), and the Application (source code and Specification) has already been delivered;
2. the order was cancelled or interrupted at the User's request after the AI Pipeline had already been launched;
3. the failure resulted from the User providing incorrect, incomplete, or misleading data, descriptions, or materials;
4. the failure was caused by an act or omission of the User;
5. the AI Pipeline resulted in the deployment of a test (staging) environment that does not meet the User's expectations, in particular due to aesthetic discrepancies or the User's subjective preferences;
6. the User initiated a chargeback procedure or another transaction-dispute mechanism before the complaint was reviewed under the procedure set out in § 11(8)–(12) of the Terms;
7. the failure resulted from the unavailability, modification, or withdrawal of AI models or external services used by the Platform, beyond the Provider's control;
8. the User breached the terms of use of the Platform, including in particular these Terms.
Apart from the case set out in item 1 above, the Provider does not provide refunds of fees paid by the User, in particular on account of dissatisfaction with the result achieved, a change in the User's business decision, a decision not to activate the Hosting Service, or the User's failure to deploy the Application on their own.

Right of withdrawal:

A Consumer has the right to withdraw from the contract within 14 (fourteen) days of its conclusion, without giving a reason, by submitting an unambiguous statement in writing or electronically to the address indicated in § 19 of the Terms.
By accepting the quote and initiating the AI Pipeline, the Consumer expressly consents – within the meaning of Article 38(1) and Article 38(13) of the Polish Act of 30 May 2014 on Consumer Rights – to the commencement of the performance of the service before the expiry of the 14-day withdrawal period, and acknowledges that the right of withdrawal lapses once the service has been fully performed. The service is deemed to have been fully performed once the test (staging) environment has been made available to the User and the Application's source code has been provided. The Consumer's statement is recorded by the Platform and constitutes evidence of the waiver of the right of withdrawal.
If the Consumer exercises the right of withdrawal before the AI Pipeline is launched – i.e. before performance of the service has begun – the fees paid by the User are refunded in full within 14 (fourteen) days of receipt of the withdrawal statement. If performance of the AI Pipeline has already begun at the Consumer's express request, the Consumer is entitled to a refund proportional to the part of the service not yet performed as of the date the withdrawal statement is submitted, and the Provider is entitled to retain the remuneration corresponding to the stages already completed.
The right of withdrawal referred to in items 4–6 above does not apply to Professional Users (B2B).

Complaints:

Complaints must be submitted solely in writing (by e-mail) to the address indicated in § 19 of the Terms. A complaint should include: the Account identifier (e-mail address), a detailed description of the defect being reported, the date it first occurred, and a description of the Application's expected mode of operation. Complaints lacking the above information may be left unanswered until the User supplements them.
The Provider reviews a complaint within 14 (fourteen) calendar days of its proper submission. The absence of a response within this period does not mean the complaint has been deemed justified.
Complaints concerning the quality or functionality of the Application are reviewed solely by reference to the approved description and quote for the Application. The following, in particular, do not constitute grounds for a complaint: aesthetic or stylistic discrepancies, the User's subjective preferences, requirements submitted after the description and quote for the Application have been approved, a change in the functional scope expected by the User after the AI Pipeline has been launched, or limitations resulting from the properties of the AI models used by the Platform.
If a complaint is upheld, the User's sole remedy is, at the Provider's choice: (i) regeneration of the Application within the scope covered by the confirmed defect, (ii) a proportional reduction of the fee paid, or (iii) a refund of the fee paid, in whole or in part – depending on the scope and nature of the confirmed defect. The Provider excludes all other liability for damages arising from defects in the Application, including liability for lost profits and indirect damage.
A Consumer may make use of out-of-court dispute resolution methods, in particular through the ODR platform available at https://ec.europa.eu/consumers/odr/, as well as through the Trade Inspection (Inspekcja Handlowa) or the Office of Competition and Consumer Protection (UOKiK). Use of these means does not deprive the Consumer of the right to pursue claims in court.

§ 12. Changes and Corrections to the Application (Change Requests)

Once the Application has been delivered to the User, the Provider provides the ability to submit changes and corrections to the Application through the Change Request ("CR") procedure. A CR is carried out through a Prompt and the AI Pipeline, in a manner analogous to the original Application-generation process, except that its subject matter is the modification or extension of an existing Application rather than the generation of a new one. A CR may cover both the removal of discrepancies between the Application's behavior and the approved description of the Application, and the introduction of functional modifications going beyond the original description of the Application.
As part of the fee paid by the User for generating the Application, the User is entitled to a package of 5 (five) Change Requests (CRs) at no additional cost (the "Basic Package"). CRs included in the Basic Package:
1. are assigned to a specific Application and may not be transferred to other Applications or to other Users;
2. may not be exchanged for cash or other substitute benefits;
3. remain assigned to the Application and do not separately expire; they lapse upon deletion of the Application or the Account, in accordance with § 15 of the Terms;
4. are not renewed for subsequent orders – each new Application is covered by a separate Basic Package.
A CR is submitted by entering a Prompt describing the expected change or the confirmed discrepancy in the dedicated interface of the Platform. Before launching the AI Pipeline, the Platform informs the User whether the given CR will be carried out as part of the Basic Package or requires payment of an additional fee in accordance with item 4 below. Launching the AI Pipeline by the User is equivalent to accepting the terms of performing the CR, including any fee for Change Request packages. Where the CR is carried out for a fee from a paid package, the contract for performance of the CR is concluded once payment for the given Change Request package has been credited by the payment operator. Where the CR is carried out as part of the Basic Package, the contract for performance of the CR is concluded once the User launches the AI Pipeline.
Once the Basic Package has been exhausted, further CRs are carried out for a fee in accordance with the current price list for Change Request packages set out in § 7(1) of the Terms. The Provider reserves the right to change the price list for Change Request packages in accordance with the rules set out in § 7 of the Terms.
The provisions of § 8 of the Terms apply, as relevant, to the course of the AI Pipeline carried out as part of a CR, in particular regarding estimated completion times. The result of a successfully completed CR is an updated Application made available to the User in the test (staging) environment, together with the delivery of the updated source code and technical documentation (the Specification).
Additional CRs from paid Change Request (CR) packages are non-refundable where:
1. the User withdrew from performing the CR after the AI Pipeline had been launched;
2. the CR could not be carried out for reasons attributable to the User, in particular as a result of failing to provide necessary information, lack of cooperation, or withdrawal of access credentials to external services;
3. the AI Pipeline resulted in the deployment of the test environment and the delivery of the updated source code, and the result is consistent with the Prompt submitted by the User, even if it does not meet the User's further, unspecified expectations.
The provisions of § 11(8)–(12) of the Terms apply, as relevant, to complaints concerning the performance of a CR, provided that the basis for assessing the quality of the CR is the Prompt submitted by the User and the description of changes approved by the User, rather than the User's expectations.

§ 13. Provider's Liability

Towards Professional Users (B2B), the Provider's liability for non-performance or improper performance of an order is excluded in full, except for damage caused intentionally. In particular, the Provider's liability is excluded for lost profits, loss of data, business interruption, and indirect and consequential damage – regardless of their nature, amount, or the legal basis of the claim.
To the extent that the exclusion of liability referred to in item 1 above is not effective – in particular towards Consumers – the Provider's liability for any claims relating to a given Application is in each case limited to the amount of the fees paid through the Platform. This limit applies regardless of the number of claims asserted, their legal basis, their nature, or whether they are based on contractual or tortious liability.
Regardless of the provisions of items 1 and 2 above, the Provider is not liable for damage resulting from:
1. use of the Application by the User in a manner inconsistent with its intended purpose, the approved description, the provisions of the Terms, or the law;
2. unavailability, errors, changes in functionality, or withdrawal of third-party AI models used by the Platform, in particular Anthropic's models;
3. the operation, unavailability, or change in the terms of provision of external services and APIs integrated by the User;
4. errors, omissions, or inaccuracies in the description of the Application approved by the User, including those resulting from an imprecise or incomplete Prompt;
5. infringement of intellectual property rights or other third-party rights resulting from materials, data, or instructions provided by the User in the course of creating the Application or a CR;
6. force majeure, understood as an external, sudden event that could not be foreseen or prevented, in particular network infrastructure failures, DDoS attacks, acts of war, natural disasters, and decisions of public authorities;
7. loss of data, unavailability of the Application, or other consequences of the hosting environment being disabled after the grace period referred to in § 10(3) of the Terms, in particular towards end users of the User's Application;
8. decisions, rulings, or other actions of regulatory authorities, law enforcement authorities, or courts affecting the availability, functioning, or continued provision of services by the Provider;
9. further use of the Application or its source code by the User;
10. damage suffered by end users of the User's Application, including claims brought by them against the User or the Provider in connection with the operation of the Application;
11. improper operation of the Application resulting from modifications to the source code made by the User or a third party after the Application was delivered by the Provider.
The Application is generated in an automated manner by AI systems. The Provider does not guarantee that the Application is free of errors, security vulnerabilities, or malicious code, or that it is fit for the User's specific purposes. Before deploying the Application on their own or activating the Hosting Service, the User is required to carry out, at their own cost and risk, appropriate functional testing and a security audit. The Provider is not liable for damage resulting from failure to comply with this obligation.
Where the User makes the Application available to third parties (end users), the User acts as an independent controller of personal data and as a provider of electronic services within the meaning of the relevant law. The Provider is not a party to the legal relationship between the User and the User's end users and bears no liability on that account, including for damage resulting from the Application's breach of data-protection law, consumer rights, or other regulations applicable to the User's business.
All limitations and exclusions of liability provided for in this section are effective to the fullest extent permitted by Polish law. Towards Consumers, these limitations apply only to the extent that they do not violate mandatory provisions of law, in particular the provisions of the Act on Consumer Rights and the Civil Code relating to liability for damage caused intentionally.

§ 14. User's Obligations and Prohibitions

The User is required to use the Platform in accordance with generally applicable law, the provisions of the Terms, good practice, and the rules for using the AI models used by the Platform, in particular Anthropic's usage policy available at anthropic.com/legal/aup.
When using the Platform, it is prohibited, in particular, to:
1. transmit, enter, or generate through the Platform content that is illegal, obscene, pornographic, that incites hatred, discriminates, or infringes the personal interests or rights of third parties, including intellectual property rights;
2. take actions that destabilize the operation of the Platform or the Provider's infrastructure, including DoS/DDoS attacks, fuzzing, port scanning, attempts at unauthorized access to systems, circumvention of technical safeguards, and reverse engineering of the Platform or its components;
3. create Applications that constitute malicious code (malware, ransomware, spyware, and the like), data-phishing mechanisms, mechanisms for circumventing payment or authentication systems, content prohibited by law or by the policies of AI model providers, or any other Applications serving illegal activity or activity harmful to third parties;
4. build, through the Platform, Applications whose main purpose or function is to provide services competing with the Platform, in particular the automated generation of applications using AI models;
5. provide third parties with paid or free access to the Platform (reselling), sublicense access, or create intermediary interfaces enabling use of the Platform without a direct Account registration – without the Provider's prior written consent;
6. automatically mass-generate Applications or CRs using bots, scripts, or other automation tools, without the Provider's prior written consent;
7. impersonate other persons or entities, including by providing false registration data or creating Accounts on behalf of entities the User is not authorized to represent;
8. share Account access credentials with third parties; the User bears full responsibility for all actions taken using their Account, regardless of whether they were authorized by the User;
9. use the Platform in a manner that violates the terms of use of the third-party AI models integrated by the Platform, in particular for purposes prohibited by Anthropic's usage policy;
10. take any action aimed at determining, reconstructing, or circumventing the mechanisms used to price an Application-generation order, CR limits, or other business parameters of the Platform.
A breach of any of the prohibitions referred to in item 2 above entitles the Provider to take – at its own discretion and without prior notice – one or more of the following actions: immediate suspension of the User's Account pending clarification of the matter; permanent deletion of the Account, with the User losing access to all active Applications and unused CRs; suspension of the performance of all active Applications and CRs without a refund of fees paid; removal of the Application from the hosting environment with immediate effect and without a refund of subscription fees paid for the Hosting Service; retention of all fees paid by the User as liquidated damages for the breach, without prejudice to the right to pursue compensation exceeding that amount under general principles; reporting the breach to the competent law enforcement or regulatory authorities, in particular where the breach shows the hallmarks of a criminal offense.
The User undertakes to compensate for any harm suffered by the Provider or third parties in connection with the User's breach of the provisions of the Terms, the law, or third-party rights, including covering all documented costs incurred by the Provider in connection with handling third-party claims, legal representation costs, and any administrative fines imposed on the Provider as a result of the User's actions.
The Provider reserves the right to monitor use of the Platform to the extent necessary to detect the breaches referred to in item 2 above, ensure the security of the infrastructure, and fulfill obligations arising from the law, in particular at the request of the competent authorities. Monitoring is carried out in accordance with the Privacy Policy available at https://volundr.dev/privacy.

§ 15. Account Deletion

The Account is technical access to the Platform enabling the generation of Applications, the ordering of Change Requests, and use of the Hosting Service. Registering an Account does not create a separate ongoing-cooperation agreement – each Application-generation order constitutes a separate contract concluded once the fee paid by the User is credited, and the Hosting Service is a continuous-service contract governed by § 10 of the Terms.
The User may delete their Account at any time via the relevant option in the Platform's settings, or by submitting a statement electronically to the address indicated in § 19 of the Terms. Deleting the Account does not require observing a notice period, subject to item 3 below.
Deleting the Account does not affect obligations already incurred by the User, in particular:
1. Applications and CRs launched before the date the Account is deleted are completed or suspended in accordance with the rules set out in § 8 of the Terms, without a refund of fees paid;
2. an active Hosting Service terminates at the end of the current billing period, subject to the 14-day grace period under § 10(3) of the Terms. Earlier deletion of the Account does not entitle the User to a refund of the fee for the month already begun;
3. any outstanding amounts owed to the Provider remain due despite the deletion of the Account.
As of the date the Account is deleted: the User loses access to the Platform and to all of its features; unused CRs from the Basic Package and paid Change Request (CR) packages expire without a right to a refund; Application data is retained for a period of 30 (thirty) days, after which it may be permanently deleted; the Provider is not liable for the loss of data after this period; given that the User was provided with the Application's source code upon delivery, the User may not invoke the loss of the Application as a consequence of the Account's deletion.
The Provider is entitled to block or delete the Account with immediate effect, without prior notice and without any claims for compensation on the part of the User, in the event of: a gross or repeated breach of the provisions of the Terms, in particular the prohibitions set out in § 14(2) of the Terms; a breach of the law by the User in connection with the use of the Platform; a reasonable suspicion of fraudulent activity, including initiating unjustified chargeback procedures or attempting to circumvent the Platform's payment mechanisms; actions by the User that threaten the security, integrity, or reputation of the Platform or the Provider; a request to block the Account addressed to the Provider by the competent authorities.
If the Provider blocks the Account for the reasons set out in item 5 above, any active Hosting Service is disabled with immediate effect, without a grace period and without a refund of fees paid. The Provider is not liable for any consequences of such a disabling, including towards end users of the User's Application.
Regardless of the deletion or blocking of the Account, the Provider is entitled to retain the following data for the periods required by law: transaction and accounting documentation – for a period of 5 years from the end of the calendar year in which the transaction took place; data necessary to handle claims, disputes, or proceedings – for the limitation period of the relevant claims; data provided to law enforcement or regulatory authorities – for the period required by those authorities or by applicable law; anonymized statistical and technical data – indefinitely, to the extent that it does not constitute personal data within the meaning of the GDPR.

§ 16. Protection of Personal Data (GDPR)

The controller of Users' personal data within the meaning of Article 4(7) of the GDPR is Järnhaus (identifying and contact details set out in § 19 of the Terms).
Users' personal data is processed for the following purposes and on the following legal bases: conclusion and performance of the contract (Article 6(1)(b) GDPR); compliance with the Controller's legal obligations (Article 6(1)(c) GDPR); the Controller's legitimate interest (Article 6(1)(f) GDPR); the User's consent (Article 6(1)(a) GDPR).
In connection with the provision of the Services, Users' personal data may be disclosed to the following categories of recipients: Stripe, Inc. / Stripe Payments Europe, Ltd.; providers of the cloud infrastructure used by the Platform; providers of AI models used in the course of carrying out an Application-generation order, in particular Anthropic, PBC; providers of legal, accounting, and audit services to the Controller; law enforcement authorities, regulatory authorities, and courts.
Where personal data is transferred to third countries (outside the European Economic Area), the transfer is carried out using the appropriate safeguards referred to in Article 46 GDPR, in particular standard contractual clauses adopted by the European Commission, or on the basis of an adequacy decision referred to in Article 45 GDPR.
Detailed information regarding the processing of personal data, retention periods, and the rights of data subjects is set out in the Privacy Policy available at https://volundr.dev/privacy.
To the extent that, in the course of using the Platform, the User processes the personal data of third parties (in particular as the controller of personal data of their own end users), the User acts as an independent controller of that data. Activation of the Hosting Service by a User who processes the personal data of its end users through the hosted Application is equivalent to the conclusion, between the User (as controller) and the Provider (as processor), of a data-processing agreement within the meaning of Article 28 GDPR, on the terms set out in the Standard Data Processing Terms available at https://volundr.dev/dpa (the "DPA Terms"). By activating the Hosting Service, the User represents that they have read the DPA Terms and accept their content. If the User does not process the personal data of end users through the hosted Application, this item does not apply.
The User is required not to include third parties' personal data in the content of Prompts. The content of Prompts is processed by third-party AI models (in particular Anthropic, PBC), which involves their transfer outside the Provider's infrastructure. If carrying out a Project requires the entry of personal data, the User is required to anonymize it beforehand and to obtain the appropriate legal basis for its processing by third parties.

§ 17. Cookies and Tracking Technologies

The Platform uses cookies and similar technologies (local storage, session storage, and others) to ensure the proper functioning of the Platform, authenticate Users, remember preferences, and – with the User's consent – for marketing and analytical purposes.
The following categories of cookies are used: necessary (do not require consent and cannot be blocked without losing basic functionality); analytical (used only with consent); marketing (used only with consent); functional (used only with consent).
Consent to the use of cookies other than necessary ones is given by the User through the consent management widget displayed on first entering the Platform. Consent is voluntary, granular, and may be withdrawn at any time.
Detailed information regarding the cookies used is set out in the Cookie Policy available at https://volundr.dev/cookies.

§ 18. Changes to the Terms

The Provider reserves the right to amend the Terms at any time, in particular due to: changes in law or binding decisions of public authorities; technical or functional changes to the Platform; changes in the terms of service of AI-model, cloud, or other external providers; changes to the pricing model or the structure of services; the need to correct inaccuracies, errors, or unlawful provisions.
The Provider will notify Users holding an Account of a change to the Terms electronically, to the e-mail address assigned to the Account, at least 14 days before the effective date of the change. The notice will state the scope of the changes and their effective date.
In B2B relationships, regardless of e-mail notification, publication of the new version of the Terms on the Platform's website, together with the effective date, is also deemed effective notice. A Professional User (B2B) is required to independently monitor the current version of the Terms.
If the User does not accept the amended Terms, the User is required to delete their Account before the effective date of the changes, in accordance with § 15 of the Terms. Continued use of the Platform after the effective date of the changes is deemed to constitute unconditional acceptance of the new Terms.
A change to the Terms does not affect the conditions for carrying out orders for which payment was credited before the effective date of the change. A change to the Terms may affect the rules for providing the Hosting Service from the next billing period following the effective date of the change.
Changes to the price list referred to in § 7 of the Terms do not require a change to the Terms and take effect on the date of their publication on the Platform, provided that: the new price list does not apply to orders for which payment was made before the date the change was published; a change to the price list for the Hosting Service takes effect from the first billing period following the expiry of 14 days from the date of its publication on the Platform.
The Provider is entitled to amend the Terms with immediate effect, without observing the 14-day notice period, where the change is required by mandatory law or a binding decision of a public authority.

§ 19. Contact Details and Correspondence

The Provider's contact details:
- Provider's website: https://jarnhaus.dev
- Platform website: https://volundr.dev
- address for written correspondence: Marek Rybka, ul. Krótka 54/2, 60-185 Skórzewo, Poland
- e-mail address for general correspondence: kontakt@volundr.dev
- e-mail address for complaints: reklamacje@volundr.dev
- e-mail address for data-protection (GDPR) matters: rodo@volundr.dev
- contact form: available on the Platform and in the Account panel
Correspondence sent by the User to the Provider should be addressed to the appropriate address indicated in item 1 above, depending on its subject matter.
The date on which a complaint, request, or other statement is deemed to have been submitted is: in the case of electronic correspondence – the date the message is received at the Provider's correct e-mail address, confirmed by an automatic acknowledgment of receipt; in the case of written correspondence – the date the item is delivered to the Provider's registered address.
The Provider is not liable for any consequences resulting from the User providing incorrect contact details. The User is required to update their contact details in the Account settings promptly after any change.

§ 20. Final Provisions

The Terms take effect on 20 July 2026 and remain in force for an indefinite period, until amended or revoked in accordance with § 18 of the Terms.
The Terms are governed by Polish law. In matters not regulated by the Terms, the following apply in particular: the Act of 23 April 1964 – the Civil Code, the Act of 18 July 2002 on the Provision of Services by Electronic Means, the Act of 30 May 2014 on Consumer Rights, the GDPR, the Act of 4 February 1994 on Copyright and Related Rights, and other mandatory provisions of Polish and EU law.
In relations with Users who reside or are established outside the European Economic Area, the Terms are governed solely by Polish law. Any disputes with such Users are resolved exclusively by the court having jurisdiction over the Provider's registered office, except for mandatory provisions of the User's local law whose exclusion is not permitted.
Any disputes arising from the Terms are resolved: in B2B relationships – exclusively by the ordinary court having local jurisdiction over the Provider's registered office; in relations with Consumers – by the ordinary court having jurisdiction under the Code of Civil Procedure, taking into account the provisions on alternative jurisdiction available to the Consumer.
Before initiating court proceedings, the parties undertake to attempt to resolve the dispute amicably through negotiation or mediation conducted in good faith for a period of at least 30 days. This obligation does not apply where the Provider is pursuing monetary claims through summary or order-for-payment proceedings, or where a delay would risk the claim becoming time-barred.
The invalidity or unenforceability of any provision of the Terms does not affect the validity of the remaining provisions. A defective provision is replaced by a legal rule as close as possible to the purpose of the original provision.
The Provider's failure to enforce any provision of the Terms in a specific case does not constitute a waiver of the right to enforce it in the future.
The headings of the sections and items used in the Terms are for organizational purposes only and do not affect the interpretation of their provisions.
The Terms are drawn up in two language versions – Polish and English – with the Polish version being the binding version. Translations into other languages (including English) are provided for informational purposes only and may not serve as a basis for interpreting the provisions of the Terms or for any claims by the User.
The Terms do not exclude or limit the rights of a Consumer arising from mandatory provisions of Polish and EU law. In the event of any inconsistency between a provision of the Terms and such a provision of law, the provision of law shall prevail.