Terms of Use

Sloth — Alarm clock for climbers

Last updated: 6 July 2026

These Terms of Use (“Terms”) govern your use of Sloth, a mobile alarm application for climbers (“the App”, package name com.sloth.app), operated by Luca Gudermann (“we”, “us”, “our”). By downloading, installing, or using the App, you agree to these Terms. If you do not agree, do not use the App.

1. About Sloth

Sloth is an alarm clock that requires you to complete a physical camera-verified challenge before the alarm can be silenced. Challenges may include hangboard holds, push-ups, pull-ups, or sit-ups. The App uses on-device pose detection to verify that you are performing the selected exercise.

Important health and safety notice
Sloth is a wake-up tool, not a medical, coaching, or training programme. Climbing and bodyweight exercises carry risk of injury. You are solely responsible for exercising safely, warming up appropriately, using properly installed equipment, and stopping if you feel pain or discomfort.

2. Eligibility

You must be at least 16 years old to use the App, or the minimum age required in your country if higher. If you are under 18, you confirm you have permission from a parent or guardian.

3. Your responsibilities

When using Sloth, you agree to:

4. Camera verification and AI limitations

Sloth uses automated, on-device analysis to detect exercise postures. This technology is imperfect. Verification is based on body pose heuristics, not professional coaching judgment or medical measurement. The App may:

You acknowledge that camera verification is a convenience feature to help you wake up, not a guarantee of correct exercise form or training quality.

5. Alarms and device reliability

We design Sloth to fire alarms reliably using native platform scheduling (including exact alarms on Android and system alarms on supported iOS versions). However, alarm delivery can still be affected by factors outside our control, including:

Do not rely on Sloth as your only alarm for critical appointments (medical procedures, flights, employment, exams, etc.). Use a backup alarm.

6. Accounts

Sign-in is optional. If you create an account via Google, Apple, or email through Firebase Authentication, you are responsible for maintaining access to that account and for activity under it.

7. Subscriptions and payments

Some features require a paid subscription (“Sloth Pro” or similar). Subscriptions are sold through the Apple App Store or Google Play and managed via RevenueCat. Payment terms, billing cycles, renewals, cancellations, and refunds are governed by the applicable app store’s policies.

8. Free and premium features

We may change which features are free or premium over time. If you have an active paid subscription, you will retain access to the premium features included in your plan for the paid period, subject to these Terms and store policies.

9. Intellectual property

The App, including its design, code, branding, and content, is owned by Luca Gudermann or our licensors. We grant you a limited, non-exclusive, non-transferable, revocable licence to use the App for personal, non-commercial purposes in accordance with these Terms. You may not copy, modify, reverse engineer, resell, or redistribute the App.

10. Prohibited conduct

You may not:

11. Disclaimer of warranties

The App is provided “as is” and “as available” without warranties of any kind, whether express or implied, including fitness for a particular purpose, uninterrupted operation, or error-free performance. We do not warrant that alarms will always fire on time, that AI verification will always be accurate, or that the App will meet your training goals.

12. Limitation of liability

To the maximum extent permitted by applicable law, Luca Gudermann shall not be liable for any indirect, incidental, special, consequential, or punitive damages, including lost profits, missed appointments, injury, or property damage arising from your use of the App or reliance on its alarms or exercise verification.

Where liability cannot be excluded, our total liability for any claim relating to the App is limited to the amount you paid us for the App in the twelve (12) months before the event giving rise to the claim, or EUR 50, whichever is greater.

Nothing in these Terms limits liability for death or personal injury caused by negligence where such limitation is not permitted by law, or for fraud or intentional misconduct.

13. Indemnity

You agree to indemnify and hold us harmless from claims, damages, and expenses (including reasonable legal fees) arising from your misuse of the App, violation of these Terms, or injury resulting from your training activities while using the App.

14. Termination

You may stop using the App at any time by uninstalling it and cancelling any active subscription through your app store account. We may suspend or terminate access if you violate these Terms or if required for legal or security reasons.

15. Changes to the App and Terms

We may update the App or these Terms from time to time. Material changes will be posted at this URL with an updated date. Continued use after changes take effect constitutes acceptance of the revised Terms.

16. Governing law and disputes

These Terms are governed by the laws of Germany, excluding conflict-of-law rules. If you are a consumer resident in the EU, you also benefit from mandatory protections of your country of residence. The courts of Berlin, Germany shall have jurisdiction where permitted by law.

17. Contact

Luca Gudermann
Agricolastr. 28
10555 Berlin, Germany
Email: lucamgudermann@gmail.com