MuscleFuel AI
Last updated 2026-05-11

Terms of Use (EULA)

The legal terms governing your use of MuscleFuel AI.

This End User License Agreement (“Agreement”) is a legal agreement between you (“you” or “User”) and PLAYRIOT LLC (“we,” “us,” or “Company”) for the use of the MuscleFuel AI mobile application (the “App”). By downloading, installing, or using the App, you agree to be bound by this Agreement.

1. License Grant

We grant you a limited, non-exclusive, non-transferable, revocable license to download and use the App on Apple-branded products that you own or control, in accordance with the Apple Media Services Terms and Conditions and this Agreement.

2. Subscription Plans

MuscleFuel Pro is offered as an auto-renewing subscription with a 3-day free trial for first-time subscribers. Plan options and pricing are shown on the in-app paywall at the time of purchase and may vary by region. Local prices shown in the App are authoritative.

3. Auto-Renewal Terms

  • Payment will be charged to your Apple ID account at confirmation of purchase (or at end of trial).
  • Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period.
  • Your account will be charged for renewal within 24 hours prior to the end of the current period at the renewal price disclosed at signup.
  • You can manage your subscription or turn off auto-renewal via Settings > Apple ID > Subscriptions on your device, or via Manage Subscription inside the App.
  • No cancellation of the current subscription is allowed during an active subscription period.

4. Free Trial

The 3-day free trial applies to first-time subscribers only. If you do not cancel at least 24 hours before the trial ends, you will be charged the regular subscription price and the subscription will renew automatically. Any unused portion of a free trial is forfeited when you purchase a subscription.

5. Refunds

All purchases are processed by Apple via the App Store. Refund requests must be submitted to Apple at reportaproblem.apple.com. We do not process refunds directly.

6. Restoring Purchases

If you reinstall the App or use a new device, tap Restore on the paywall to recover existing entitlements via the Apple ID associated with your original purchase.

7. Acceptable Use

You agree not to:

  • Reverse engineer, decompile, or disassemble the App, except to the extent permitted by applicable law.
  • Modify, adapt, or create derivative works based on the App.
  • Use the App to violate any law, regulation, or third-party right.
  • Attempt to bypass any security, authentication, or licensing mechanism.
  • Submit content (food entries, exercise notes, profile fields) that is unlawful, harassing, defamatory, or contains another person’s information without consent.

8. Health and Fitness Disclaimer

MuscleFuel AI is an educational and informational tool. It is not a medical device, a registered dietitian, a certified personal trainer, or a substitute for professional medical, dietary, or fitness advice. Macro targets, protein-quality scores, workout programs, and progress projections are general estimates based on the inputs you provide and standard nutritional and training science. You are solely responsible for consulting a qualified physician, dietitian, or certified trainer before starting any new exercise or nutrition program, especially if you have a medical condition, are pregnant or nursing, are under 18, or are returning from injury. We are not liable for injury, illness, performance loss, allergic reactions to foods you log, supplement interactions, weight changes, eating disorders, or any other outcome resulting from your use of the App.

9. User-Generated Content

Workouts, custom programs, food entries, notes, and personal records that you create remain your content. By submitting content to the App, you grant us a limited, non-exclusive, royalty-free license to store, transmit, and display that content to you across your devices for the duration of your account. We may use aggregated, anonymized usage patterns to improve the App, but we will not publish or share your individual content.

10. Intellectual Property

The App, including its source code, design, branding, exercise database, protein quality scoring system, and content, is owned by PLAYRIOT LLC and protected by copyright, trademark, and other intellectual property laws. This Agreement does not transfer any ownership rights to you.

11. Privacy

Use of the App is also governed by our Privacy Policy, which is incorporated into this Agreement by reference.

12. Disclaimer of Warranties

THE APP IS PROVIDED “AS IS” AND “AS AVAILABLE” WITHOUT WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT. WE DO NOT WARRANT THAT THE APP WILL BE UNINTERRUPTED, ERROR-FREE, OR FREE OF HARMFUL COMPONENTS, OR THAT WORKOUT PLANS, MACRO CALCULATIONS, OR PROTEIN ANALYSES WILL BE ACCURATE OR SUITABLE FOR YOUR INDIVIDUAL CIRCUMSTANCES.

13. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, PLAYRIOT LLC SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES ARISING OUT OF OR RELATED TO YOUR USE OF THE APP — INCLUDING BUT NOT LIMITED TO INJURY, ILLNESS, ALLERGIC REACTIONS, NUTRITIONAL DEFICIENCIES, WEIGHT CHANGES, OR LOSS OF TRAINING PROGRESS. OUR TOTAL LIABILITY FOR ANY CLAIM SHALL NOT EXCEED THE AMOUNT YOU PAID FOR THE APP IN THE 12 MONTHS PRECEDING THE CLAIM.

14. Termination

We may terminate or suspend your access to the App at any time, with or without cause or notice. Upon termination, your license to use the App ends immediately. Sections 8, 9, 10, 12, 13, and 15 survive termination.

15. Governing Law

This Agreement is governed by the laws of the State of California, United States, without regard to its conflict of laws principles. Any disputes shall be resolved in the state or federal courts located in California.

16. Apple-Specific Terms

You acknowledge that this Agreement is between you and PLAYRIOT LLC, and not with Apple Inc. (“Apple”). Apple is not responsible for the App or its content. In the event of any failure of the App 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 applicable law, Apple has no other warranty obligation whatsoever with respect to the App. Apple is a third-party beneficiary of this Agreement and may enforce it against you.

17. Changes to These Terms

We may update this Agreement from time to time. The updated version will be posted at this URL with a new effective date. Continued use of the App after changes are posted constitutes your acceptance of the updated terms.

18. Contact

PLAYRIOT LLC
Email: [email protected]