Terms of Service for Havyu AI

Last Updated: 5 October 2026

1. About These Terms

These terms are an agreement between you and the individual developer of Havyu AI, based in the United Kingdom, who is the seller named on the Havyu AI listing in the Apple App Store and Google Play (“we”, “us”). By downloading or using Havyu AI, you agree to these terms and to our Privacy Policy. If you do not agree, please do not use the app.

Havyu AI is intended for personal, non-commercial use. Nothing in these terms affects your statutory rights as a consumer.

2. Eligibility

You must be at least 16 years old to use Havyu AI. By downloading or using the app, you confirm that you meet this requirement.

3. Your Licence to Use Havyu AI

We grant you a personal, non-exclusive, non-transferable, revocable licence to use Havyu AI on devices you own or control, in line with these terms and the rules of the store you downloaded it from. You agree not to:

• copy, modify, reverse-engineer or resell the app, except where the law allows;
• misuse or overload our servers or AI features, or try to bypass usage limits, subscription checks or security measures;
• use the app for anything unlawful, or to harm others.

Havyu AI, its design, content and branding belong to us or our licensors. Your own logged data belongs to you.

4. Health, Medical and Injury Disclaimer

Havyu AI is designed for informational and recreational purposes only. It is not a substitute for professional medical advice, diagnosis or treatment.

• Not a medical device: Havyu AI is a training tracker and coaching tool. It does not provide medical, nutritional or physiotherapy advice.
• Research context: where the app summarises published research, those summaries are general information, not advice for your personal circumstances.
• Consult a professional: consult a qualified healthcare provider before starting a new training programme, changing your diet, or acting on coaching in the app, especially if you have a medical condition, injury or are pregnant.
• Train safely: weightlifting and exercise carry an inherent risk of injury. You are responsible for choosing loads you can lift safely, using correct technique and appropriate equipment, and stopping if you feel pain or unwell.
• Your judgement comes first: coaching in the app is based only on the data you log. It cannot see your form, your environment, or how you feel on the day.

5. AI-Generated Content

Havyu AI provides coaching insights generated by artificial intelligence and by on-device analysis. We work to make them accurate and grounded in your own data, but AI can make mistakes or produce incorrect information. Use your own judgement before acting on any AI-generated content.

AI features require you to sign in and, where your data is sent to our AI provider, your consent (see the Privacy Policy). To keep the service reliable and affordable, AI features are subject to reasonable daily usage limits, which are lower on the Free tier.

6. Subscriptions and Free Trials (Pro)

Havyu AI offers a Free tier and a paid Pro subscription that unlocks deeper AI coaching. Current features and prices are shown in the app before you buy.

• Payment: charged to your Apple ID or Google Play account when you confirm your purchase.
• Auto-renewal: subscriptions renew automatically at the end of each period unless cancelled at least 24 hours before the period ends. Your account is charged for renewal within 24 hours before the period ends.
• Free trials: where a free trial is offered (for example, a 14-day trial on the monthly plan), the trial converts to a paid subscription at the end of the trial period unless you cancel at least 24 hours before it ends. Trial eligibility is decided by the store. Any unused portion of a free trial is forfeited when you purchase a subscription.
• Managing and cancelling: manage or cancel your subscription in your App Store or Google Play account settings. Deleting the app does not cancel a subscription.
• Refunds: refunds are handled by Apple or Google under their own policies. This does not affect your statutory rights.
• Price changes: if the price changes, the store will notify you in advance as its rules require, and you can cancel before the new price applies.

7. Your Data, Imports and Health Integrations

Your workout and habit data is stored on your device. Keep your device secure, and use Export Data in Settings if you want a backup. Data stored only on your device may be lost if you delete the app or lose the device.

If you import data from a backup or from another app, you are responsible for having the right to use that file and for checking that what was imported is correct. Imports can be undone in the app.

If you connect Apple Health or Health Connect, the values the app reads depend on the data held there. We are not responsible for the accuracy of data provided by those platforms or by your other apps and devices.

8. Third-Party Services

Havyu AI relies on third-party services to work, including Apple, Google (including Gemini, Google Play and Health Connect), Supabase, RevenueCat and Sentry. Your use of features that rely on them may also be subject to their terms. We are not responsible for their actions, policies or outages, but we will tell you about any change that materially affects how Havyu AI works.

9. Changes to the App

We are continually improving Havyu AI, so features may be added, changed or removed. We will not remove core features you have paid for during a paid subscription period without telling you in advance. The app may occasionally be unavailable, for example during updates or provider outages.

10. Our Liability to You

• Things we don’t exclude: nothing in these terms limits or excludes our liability for death or personal injury caused by our negligence, for fraud or fraudulent misrepresentation, or for anything else that cannot be limited or excluded by law, including your rights as a consumer.
• Personal use only: we are not liable to you for any loss of profit, business, revenue or opportunity.
• Foreseeable loss: we are responsible only for loss or damage that was a foreseeable result of our breaking these terms or failing to use reasonable care and skill. We are not responsible for loss that was not foreseeable.
• Training risk: subject to the first point, we are not responsible for injury, health problems or other loss arising from how you choose to train, eat or recover, including decisions you make after reading coaching in the app.
• Limit: subject to the first point, our total liability to you is limited to the amount you paid for Havyu AI in the 12 months before the claim arose.

11. Ending These Terms

You can stop using Havyu AI at any time by deleting the app, and you can delete your account in Settings → Delete Account. Remember to cancel any subscription through your store account. We may suspend or end your access to AI features or your account if you seriously or repeatedly break these terms, for example by abusing our servers or trying to bypass usage limits. Where reasonable, we will tell you first.

12. Apple App Store Terms

If you downloaded Havyu AI from the Apple App Store, the following also applies:

• These terms are between you and us, not Apple. We, not Apple, are solely responsible for Havyu AI and its content.
• Your licence is limited to use on Apple-branded products you own or control, as permitted by the Usage Rules in the Apple Media Services Terms and Conditions.
• Apple has no obligation to provide maintenance or support for Havyu AI.
• If Havyu AI fails to conform to any applicable warranty, you may notify Apple, and Apple will refund the purchase price (if any). To the maximum extent permitted by law, Apple has no other warranty obligation for the app. Any other claims, losses or costs from a failure to conform to a warranty are our responsibility, to the extent they are not excluded by these terms.
• We, not Apple, are responsible for addressing any claims relating to Havyu AI or your use of it, including product liability claims, claims that it fails to meet legal or regulatory requirements, and claims under consumer protection, privacy or similar laws.
• If a third party claims that Havyu AI or your use of it infringes their intellectual property rights, we, not Apple, are responsible for investigating, defending, settling and discharging that claim.
• You confirm that you are not located in a country subject to a US Government embargo or designated as a “terrorist supporting” country, and that you are not on any US Government list of prohibited or restricted parties.
• You must comply with any applicable third-party terms when using Havyu AI.
• Apple and its subsidiaries are third-party beneficiaries of these terms and, once you accept them, may enforce them against you.

13. Changes to These Terms

We may update these terms from time to time, for example when we add features or when the law changes. The “Last Updated” date above shows when they last changed, and we will highlight material changes in the app. If you do not agree to updated terms, you can stop using the app and cancel your subscription.

14. Governing Law

These terms are governed by the laws of England and Wales. If you live in Scotland or Northern Ireland, you may also bring proceedings in your local courts. If you live in the European Union, you also keep the benefit of any mandatory consumer-protection rules of your country of residence.

15. Contact

For support or questions about these terms, contact havyulabs@gmail.com.