Terms of Use

1. Acceptance of terms

By downloading, installing, or using Metrya ("the App"), you agree to be bound by these Terms of Use ("Terms"). If you do not agree to these Terms, do not use the App.

These Terms form a legal agreement between you and r6lab Radosław Jóżefowicz, ul. Akacjowa 3, 55-003 Krzków, Poland (EU VAT: PL9730929262), the developer and publisher of the App ("we", "us", or "our").

Your use of the App is also subject to Apple's Standard End User Licence Agreement (EULA), which is incorporated into these Terms by reference.

2. Description of the App

Metrya is an iOS application that reads data from Apple HealthKit on your device and uses AI language models — accessed via an API key you provide — to generate personalised health insights, summaries, and responses to your questions.

The App operates entirely on your device. We do not operate backend servers, collect your health data, or store your personal information. See our Privacy Policy for full details.

3. Free tier and Pro upgrade

Free tier

Core features of the App are provided free of charge and will remain free indefinitely. The free tier includes:

• Full Apple Health dashboard and data visualisation.
• AI chat — ask questions about your health data powered by your own API key.
• Biological age analysis.
• Limited previews of Pro features (session logs, check-ins, and events).

Pro upgrade

The optional Pro upgrade is a one-time, non-consumable in-app purchase that unlocks additional features for the lifetime of the App, including all future Pro features as they are released. Pro features include:

• Unlimited session logs (sauna, cold plunge, red light therapy, etc.).
• Unlimited daily check-ins (energy, mood, stress, readiness).
• Unlimited wellness events (supplements, caffeine, alcohol, travel, etc.).
• Supplements and equipment profile used in AI context.
• Food habits and preferences used in AI recommendations.
• Full personal context provided to the AI for more detailed answers.
• All future Pro features at no additional cost.

4. In-app purchases

One-time payment

The Pro upgrade is available as a single one-time purchase through the Apple App Store. There are no subscriptions, recurring billing, or hidden fees. Once purchased, Pro access is permanent for the lifetime of the App, including all future Pro features.

Payment processing

All payments are processed by Apple through the App Store. We do not have access to your payment details. The purchase is subject to Apple's payment terms and conditions.

Restore purchases

If you reinstall the App or switch to a new device, you can restore your Pro purchase at no charge using the "Restore Purchase" option in the App's Settings screen. The same Apple ID used for the original purchase must be active on the device.

Refund policy

All purchases are final and non-refundable except where required by applicable law or Apple's refund policy. Refund requests must be submitted directly to Apple via reportaproblem.apple.com. We do not process refunds directly.

Price changes

The price of the Pro upgrade is set in App Store Connect and may change at any time for new purchases. Existing purchasers are not affected — their lifetime access is not subject to price changes.

5. Bring Your Own Key (BYOK)

To use AI features, you must provide a valid API key from a supported AI provider (currently Anthropic, OpenAI, or Google). By using the App with your API key, you acknowledge and agree that:

• You are responsible for obtaining and maintaining a valid API key from your chosen provider.
• Your use of the AI provider's services is governed by that provider's terms of service and privacy policy, independently of these Terms.
• All AI-related costs (API usage charges) are billed directly by your AI provider to your account with them. We have no involvement in and no liability for those charges.
• We make no guarantees about the availability, accuracy, or performance of any third-party AI provider.
• You are responsible for keeping your API key secure. If your key is compromised, revoke it in your provider's dashboard immediately.

6. Health & medical disclaimer

The App is not a medical device and does not provide medical advice. All content generated by the App — including AI responses, health summaries, trends, scores, and biological age estimates — is for informational and personal wellness purposes only.

Nothing in the App should be used as a substitute for:

• Professional medical advice, diagnosis, or treatment.
• Consultation with a qualified physician, specialist, or other healthcare provider.
• Emergency medical services. If you are experiencing a medical emergency, call your local emergency number immediately.

Always seek the advice of a qualified healthcare professional before making any changes to your diet, exercise routine, medication, supplements, or other health-related behaviours. Do not disregard or delay seeking professional medical advice because of something you read or heard in the App.

AI-generated health insights are based on general patterns and the data you provide. They are not personalised medical recommendations and may not reflect your individual medical circumstances. We expressly disclaim any liability for health decisions made based on the App's content.

7. Acceptable use

You agree not to:

• Use the App for any unlawful purpose or in violation of any applicable laws or regulations.
• Attempt to reverse-engineer, decompile, or disassemble the App.
• Use the App in any way that could damage, disable, or impair it.
• Attempt to gain unauthorised access to any systems or networks connected to the App.
• Use the App to process data belonging to other individuals without their consent.
• Circumvent or attempt to circumvent the App's purchase verification systems.
• Redistribute, sell, or sublicense the App or any part of it.

The App is intended for personal, non-commercial use only.

8. Intellectual property

The App, including its design, code, graphics, and content, is owned by r6lab Radosław Jóżefowicz and is protected by applicable intellectual property laws. You are granted a limited, non-exclusive, non-transferable, revocable licence to use the App on your Apple device(s) for personal use in accordance with these Terms.

This licence does not include the right to copy, modify, distribute, sell, or create derivative works based on the App.

"Apple Health", "HealthKit", "iPhone", and related marks are trademarks of Apple Inc. "Claude" is a trademark of Anthropic PBC. "ChatGPT" and "GPT" are trademarks of OpenAI. "Gemini" is a trademark of Google LLC. These trademarks are used for identification purposes only.

9. Third-party services

The App integrates with the following third-party services. Your use of these services is governed by their respective terms:

• Apple HealthKit — subject to Apple's terms of service.
• Anthropic (Claude API) — anthropic.com/legal/consumer-terms
• OpenAI (GPT API) — openai.com/policies/terms-of-use
• Google (Gemini API) — policies.google.com/terms
• RevenueCat — used for purchase verification. revenuecat.com/terms

We are not responsible for the content, availability, or practices of any third-party service. Links to third-party websites are provided for convenience only.

10. Disclaimer of warranties

The App is provided on an "as is" and "as available" basis, without warranties of any kind, either express or implied, including but not limited to:

• Warranties of merchantability or fitness for a particular purpose.
• Warranties that the App will be uninterrupted, error-free, or free of bugs or viruses.
• Warranties as to the accuracy, completeness, or reliability of any AI-generated content.
• Warranties that the App will be compatible with future versions of iOS or HealthKit.

AI responses are generated by third-party language models and may be inaccurate, incomplete, or outdated. We do not warrant the accuracy of any health insight generated by the App.

11. Limitation of liability

To the maximum extent permitted by applicable law, r6lab Radosław Jóżefowicz shall not be liable for any indirect, incidental, special, consequential, or punitive damages, including but not limited to:

• Loss of data, profits, or revenue.
• Harm to health arising from reliance on AI-generated content.
• Costs incurred through use of a third-party AI provider's API.
• Service interruptions caused by Apple, HealthKit, or any AI provider.
• Unauthorised access to your device or API key.

Our total aggregate liability to you for any claim arising under or in connection with these Terms shall not exceed the amount you paid for the Pro upgrade (if any), or €10, whichever is greater.

Some jurisdictions do not allow the exclusion or limitation of certain warranties or liabilities, so some of the above limitations may not apply to you.

12. Governing law

These Terms are governed by and construed in accordance with the laws of Poland, without regard to its conflict of law provisions. For users in the European Union, mandatory consumer protection provisions of your country of residence also apply.

Any disputes arising under these Terms shall be subject to the exclusive jurisdiction of the courts of Poland, unless mandatory consumer protection law in your jurisdiction provides otherwise. EU consumers may also use the EU Online Dispute Resolution platform.

13. Changes to these terms

We reserve the right to update these Terms at any time. Material changes will be indicated by an updated "Last updated" date at the top of this page. We encourage you to review these Terms periodically.

Continued use of the App after any change constitutes your acceptance of the revised Terms. If you do not agree with a material change, you should stop using the App.

Changes to these Terms do not affect your entitlement to Pro features already purchased — the "all future Pro features included" commitment is binding regardless of any future Terms revision.

14. Contact

For questions about these Terms, please contact:

• r6lab Radosław Jóżefowicz
• ul. Akacjowa 3, 55-003 Krzków, Poland
• EU VAT: PL9730929262
• Email: radek@jozefowicz.dev