marble.App Store

Terms of Service

Effective date: September 2, 2026

These Terms of Service (the “Terms”) govern your use of the Marble mobile application and this website (together, the “Service”), operated by Marble (“we”, “us”). By downloading or using the Service you agree to these Terms and to our Privacy Policy, which is incorporated by reference. If you do not agree, do not use the Service.

1. Eligibility

You must be at least 16 years old to use the Service. If you are between 16 and 17, you may use the Service only with the consent and supervision of a parent or legal guardian who agrees to these Terms on your behalf and is responsible for your use.

2. The Service

Marble helps you track nutrition, training and body-composition progress. It uses artificial intelligence to estimate calories and macronutrients from meal photos and descriptions, to assess physique photos, to generate training plans and weekly reviews, and to render an AI-generated image estimating how your body could look in the future (“future body”). Marble does not require an account; your data is stored on your device as described in the Privacy Policy.

3. Not medical advice

The Service provides general fitness and nutrition information for healthy adults. It is not medical advice and is not a substitute for consultation with a physician, registered dietitian or other qualified health professional. The Service is not intended to diagnose, treat, cure or prevent any disease or condition, including eating disorders.

  • Consult a qualified professional before starting any diet or exercise program, especially if you have a medical condition, an injury, are pregnant, or take medication.
  • Calorie, macronutrient and nutrition figures produced by the Service are estimates only and may be inaccurate. Do not rely on them for medical or safety-critical decisions (for example allergy or medication management).
  • Calorie targets, weight-loss pace and training plans are generated from published formulas and guidelines and your own inputs; they are general guidance, not an individualized clinical prescription. The sources behind them are listed in the App under Sources, reachable from each recommendation and from Settings.
  • Stop exercising and seek medical attention if you experience pain, dizziness or other concerning symptoms.

4. AI-generated content

Physique assessments, meal analyses, plans, coaching responses and future body renders are produced by AI models. AI output can be wrong, incomplete or inconsistent. In particular:

  • The future body render is an illustrative estimate, not a promise or guarantee of results. Actual outcomes depend on genetics, adherence, nutrition, training and many factors outside our control.
  • Physique scores and assessments are subjective model outputs, not objective measurements or professional evaluations.
  • You are responsible for applying your own judgment before acting on any AI output.

5. License to use the Service

We grant you a personal, limited, non-exclusive, non-transferable, revocable license to use the App on devices you own or control, for your personal, non-commercial use, subject to these Terms and the app store’s usage rules.

6. Your content

You retain all rights to the photos and other content you submit to the Service (“Your Content”). You grant us a limited, worldwide, royalty-free license to process Your Content solely to provide the Service to you — for example, transmitting a photo to our AI providers to produce your analysis or render, which happens only after you have given permission on the App’s AI consent screen. We do not use Your Content to train AI models, and we do not use it for marketing without your separate, explicit consent.

You represent and warrant that:

  • You own Your Content or have all rights necessary to submit it.
  • Photos you submit for physique features depict you, or another person only with that person’s explicit consent.
  • Your Content does not violate any law or any third party’s rights.

7. Acceptable use

You agree not to:

  • submit sexually explicit imagery, content depicting minors, or any unlawful content (explicit imagery is automatically screened and blocked);
  • submit photos of another person without their consent, or use the Service to harass, demean or deceive anyone;
  • use AI outputs (including future body renders) to mislead others, or present them as real photographs of events that occurred;
  • reverse engineer, decompile, scrape, probe or interfere with the Service, circumvent usage limits or security measures, or access the Service by automated means;
  • resell, sublicense or commercially exploit the Service or its outputs without our written permission.

AI features are subject to fair-use limits that vary by subscription tier; current limits are shown in the App. We may adjust limits to keep the Service reliable and economical.

8. Subscriptions and billing

  • Certain features require a paid subscription (“Marble Pro”), offered on weekly or annual plans. Prices are shown in the App before purchase.
  • Payment is processed by the Apple App Store (or Google Play) under its own terms. We do not receive or store your payment details.
  • Where offered, a free trial converts to a paid subscription at the end of the trial period unless you cancel at least 24 hours before it ends.
  • Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your app store subscription settings; cancellation takes effect at the end of the current billing period.
  • Refunds are handled by the app store under its policies; we cannot issue refunds directly for app store purchases.
  • Deleting the App does not cancel a subscription.

9. Third-party services

The Service relies on third-party providers (such as our backend host, AI model providers, subscription infrastructure and the app stores) and may link to third-party sites. We are not responsible for third-party services or content; your use of them is governed by their own terms.

10. Intellectual property

The Service — including its software, design, branding, text and imagery, but excluding Your Content — is owned by us or our licensors and protected by intellectual-property laws. Except for the license in section 5, no rights are granted to you. Subject to these Terms, you may use the AI outputs generated for you (such as your plans and future body renders) for your personal purposes.

11. Termination

You may stop using the Service at any time; the Reset account option in Settings erases your local data. We may suspend or terminate your access if you materially breach these Terms, if required by law, or if we discontinue the Service (in which case we will give reasonable notice where practicable). Sections 3, 4, 6 and 12 through 16 survive termination.

12. Disclaimer of warranties

THE SERVICE IS PROVIDED “AS IS” AND “AS AVAILABLE” WITHOUT WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, ACCURACY AND NON-INFRINGEMENT. WE DO NOT WARRANT THAT THE SERVICE WILL BE UNINTERRUPTED, ERROR-FREE OR THAT AI OUTPUTS WILL BE ACCURATE OR RELIABLE. Some jurisdictions do not allow the exclusion of implied warranties, so parts of this section may not apply to you.

13. Limitation of liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, WE WILL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL OR PUNITIVE DAMAGES, OR ANY LOSS OF DATA, PROFITS OR GOODWILL, ARISING FROM OR RELATED TO YOUR USE OF THE SERVICE — INCLUDING RELIANCE ON CALORIE ESTIMATES, PLANS OR OTHER AI OUTPUTS. OUR TOTAL AGGREGATE LIABILITY FOR ALL CLAIMS RELATING TO THE SERVICE IS LIMITED TO THE GREATER OF THE AMOUNTS YOU PAID US IN THE TWELVE (12) MONTHS BEFORE THE CLAIM AROSE OR FIFTY US DOLLARS (US$50). Nothing in these Terms excludes liability that cannot be excluded under applicable law, including for gross negligence, wilful misconduct, or death or personal injury caused by negligence, or affects the statutory rights of consumers.

14. Indemnification

You will indemnify and hold us harmless from claims, damages and reasonable expenses (including legal fees) arising from Your Content, your breach of these Terms, or your violation of any law or third-party right, except to the extent caused by our own breach or negligence.

15. Governing law and disputes

These Terms are governed by the laws of the country in which the operator of the Service is established, without regard to conflict-of-law rules, and disputes are subject to the courts of that country — except that if you are a consumer, you also benefit from any mandatory consumer protections, and may bring proceedings in the courts, of the country where you live. Before bringing a claim, please contact us — most concerns can be resolved quickly and informally.

16. Changes to these Terms

We may update these Terms from time to time. The effective date above reflects the latest revision; material changes will be communicated in the App or on this website with reasonable notice. Continued use of the Service after changes take effect constitutes acceptance. If any provision of these Terms is held unenforceable, the remaining provisions remain in effect, and our failure to enforce a provision is not a waiver of it.

17. Contact

Questions about these Terms: contact@getmarble.fit