Terms of Service

1. Scope and provider

1.1 These Terms of Service (“Terms”) apply to the use of the rep.ai mobile application for iOS and Android (the “App”), the website at rep-ai.online (the “Website”) and all related services (together, the “Services”).

1.2 The Services are provided by:

(“yeeylo”, “we”, “us”). rep.ai is a product of yeeylo.

1.3 These Terms apply to consumers and businesses. A consumer is any natural person who enters into a legal transaction for purposes that are predominantly outside their trade, business or profession (§ 13 BGB). We do not accept any of your own terms and conditions that differ from these Terms, unless we expressly agree to them in writing.

2. Eligibility

2.1 You must be at least 16 years old to use the Services. If you are under 18, you may only purchase a paid subscription with the consent of your parent or legal guardian.

2.2 The Services are designed for healthy adults and young people who want to train their strength and build muscle. If any of the circumstances in Section 6.3 apply to you, you may only use the Services after consulting a doctor.

3. Conclusion of contract

3.1 Displaying the App in the app stores and presenting our Services on the Website does not constitute a binding offer. A free user agreement with us is concluded when you complete registration in the App and accept these Terms.

3.2 Paid subscriptions are purchased through the Apple App Store or Google Play (see Section 8). The purchase contract is concluded under the terms of the respective store. Our contract with you regarding the content and scope of premium features is governed by these Terms.

3.3 Joining the early-access list on the Website is free and does not create any obligation to purchase or any claim to be admitted to a beta or to a particular launch date.

3.4 The contract language is English. We store the text of the contract (these Terms); you can view the current version at any time on this page and in the App.

4. Your account

4.1 You must provide truthful and complete information when you register and keep it up to date. Accurate information, such as height, weight, training experience and injuries, matters for safe and suitable recommendations.

4.2 Your account is personal and may not be transferred. Keep your sign-in details confidential and notify us without undue delay at hello@rep-ai.online if you suspect misuse.

4.3 You can delete your account at any time in the App. Deleting your account does not automatically cancel a subscription purchased through an app store (see Section 8.4).

5. Our services

5.1 rep.ai is an AI fitness coaching app for natural muscle growth. Depending on the features available and your subscription, the Services include in particular:

• personalised workout plans with exercises, sets, reps and suggested weights;
• an AI body scan that provides visual physique estimates from guided photos;
• workout, weight and progress tracking;
• calorie, protein and water targets and meal suggestions;
• sleep, energy and recovery check-ins and resulting guidance;
• automatic adjustment of recommendations based on your progress.

5.2 The specific scope of free and paid features is shown in the App at the time of purchase.

5.3 Some features may be labelled as “beta” or “early access”. These features are still being tested, may contain errors and may be changed or discontinued.

5.4 rep.ai is a general fitness and wellness service. rep.ai is not a medical device within the meaning of Regulation (EU) 2017/745, and does not provide medical, therapeutic or dietetic services.

6. Health and safety

6.1 No medical advice. All content and recommendations in rep.ai, including workout plans, suggested weights, calorie and protein targets, meal suggestions, recovery tips and body scan results, is general information for healthy people. It is not a diagnosis, treatment or medical recommendation.

6.2 Body scan estimates. Body scan results are estimates based on photos. They are not precise measurements of body composition, body fat or muscle mass, and cannot determine your genetic muscle-building potential. Lighting, camera angle, clothing and posture affect the results. Do not make medical decisions based on scan results.

6.3 Consult a doctor first before you start training or change your diet with rep.ai if you:

• have, or have had, cardiovascular disease, high blood pressure, diabetes, respiratory disease or another chronic illness;
• have injuries, joint, back or musculoskeletal problems, or have recently had surgery;
• are pregnant, breastfeeding or have recently given birth;
• take medication that affects your heart rate, blood pressure or metabolism;
• have, or have had, an eating disorder, or are significantly underweight;
• have not exercised for a long time or are unsure whether training is suitable for you.

6.4 Listen to your body. Stop training immediately and seek medical help if you experience pain, chest pressure, shortness of breath, dizziness, nausea or other symptoms. Use correct technique, warm up, and only use weights that you can control safely. Suggested weights are guidance: you decide what load is appropriate for you.

6.5 Nutrition. Calorie and protein targets are estimates. Take allergies, intolerances and medical dietary requirements into account yourself. rep.ai does not support diets far below your energy needs; seek professional help in such cases.

6.6 Equipment and surroundings. You are responsible for the safe condition of your equipment and training environment, and for using a spotter where appropriate (e.g. for bench press with heavy weights).

7. AI-generated content

7.1 rep.ai uses artificial intelligence, including our own machine-learning models and models from third parties such as OpenAI, to analyse your data and to generate plans, suggestions and texts (“AI Content”).

7.2 AI Content is generated automatically and can be incomplete, imprecise or, in individual cases, unsuitable for you. We use safety rules to limit unsuitable recommendations, but we cannot guarantee that every piece of AI Content is correct or suitable for your personal situation. Check AI Content for plausibility and do not follow recommendations that seem unsafe or unsuitable to you.

7.3 AI Content does not create a guarantee of a particular result. Progress in muscle growth, strength or fat loss depends on many individual factors, such as genetics, consistency, sleep, nutrition and health.

7.4 You may use AI Content generated for you for your personal, non-commercial purposes.

8. Subscriptions and payment

8.1 Free and premium. Some features are free. Others require a paid subscription (“Premium”). Prices, terms and included features are shown in the App before purchase. All prices include statutory VAT.

8.2 Purchase through app stores. Subscriptions are purchased exclusively as in-app purchases through the Apple App Store or Google Play. Payment is processed by Apple or Google under their terms. We use the service provider RevenueCat to manage subscriptions and unlock Premium features (see our Privacy Policy).

8.3 Automatic renewal. Unless otherwise stated, subscriptions renew automatically for the same term (e.g. monthly or yearly) unless you cancel at least 24 hours before the end of the current term. Your store account is charged within 24 hours before the start of the new term.

8.4 Cancellation. You can cancel your subscription at any time, effective at the end of the current term, in your Apple ID settings (iOS) or Google Play account (Android). Deleting the App or your rep.ai account does not cancel the subscription. After cancellation, you keep access to Premium until the end of the term you have paid for.

8.5 Free trials. If we offer a free trial, it automatically converts into a paid subscription at the end of the trial period unless you cancel at least 24 hours before it ends. Any unused part of a free trial is forfeited when you purchase a subscription.

8.6 Price changes. We may change subscription prices for future terms. Apple or Google will inform you of price changes in advance according to their procedures and, where required, ask for your consent. If you do not agree, you can cancel before the change takes effect.

8.7 Refunds. Refunds for purchases made through an app store are handled by Apple or Google under their refund policies. Your statutory rights remain unaffected.

9. Right of withdrawal for consumers

9.1 If you are a consumer in the EU, you generally have a statutory right to withdraw from contracts concluded at a distance within 14 days without giving any reason. For in-app purchases through the Apple App Store or Google Play, Apple or Google are your contractual partner for the purchase. The withdrawal and refund procedures of the respective store therefore apply (e.g. via “Report a problem” at Apple or the Google Play refund request).

9.2 Early expiry for digital content and services. Your right of withdrawal for a contract for the supply of digital content or digital services can expire early if we begin performing the contract after you have (1) expressly consented to us beginning before the end of the withdrawal period and (2) acknowledged that you lose your right of withdrawal as a result (§ 356(5) BGB). We will ask you for this consent and acknowledgement before the purchase, where applicable.

9.3 Your statutory rights as a consumer are not restricted by this section.

10. Your content

10.1 “Your Content” means all data you upload or enter in the App, in particular body scan photos, workout logs, weight entries, notes and other information.

10.2 You keep all rights to Your Content. You grant us a simple, non-transferable licence, limited to the duration of your use, to store, process, analyse and display Your Content solely to provide the Services to you, including processing by the service providers named in our Privacy Policy. This licence ends when you delete the content or your account, except where we are legally required to keep data.

10.3 No training without consent. We use your body scan photos to train or improve our own ML models only if you have separately given us optional consent to do so in the App. You can withdraw this consent at any time.

10.4 You may upload only photos of yourself. You must not upload photos of other people, minors, or content that is unlawful or that infringes third-party rights. The scan requires suitable sportswear; do not upload nude images.

11. Acceptable use

When using the Services, you must not:

• violate applicable law or third-party rights;
• reverse-engineer, decompile or otherwise attempt to obtain the source code of the App, except where permitted by mandatory law (§ 69e UrhG);
• circumvent security measures, access other users’ data or place an unreasonable load on our systems;
• use bots, scrapers or other automated means to access the Services, or extract AI Content systematically;
• resell the Services, make them available to third parties or use them commercially without our consent;
• circumvent or manipulate subscription or payment mechanisms.

If you breach these rules, we may temporarily or permanently block your access after taking your legitimate interests into account (see Section 16).

12. Intellectual property

12.1 The App, the Website and all content we provide, in particular software, design, texts, graphics, the rep.ai coach mascot and its 3D illustrations, logos, exercise descriptions and the database, are protected by copyright, trademark and other laws and belong to yeeylo or our licensors.

12.2 During the term of the contract, we grant you a simple, non-transferable, non-sublicensable right to use the App on your devices for personal, non-commercial purposes in accordance with these Terms. Any further use requires our prior written consent.

13. Availability and changes to the Services

13.1 We strive to keep the Services available at all times. Temporary interruptions may occur due to maintenance, updates, security measures or circumstances beyond our control (e.g. outages of internet or service providers). We will announce planned maintenance in advance where possible.

13.2 We may change the Services where this is necessary for a valid reason, such as adapting to new technical developments, legal requirements or security needs, or improving the Services, and where it is reasonable for you, taking our interests into account. For paid subscriptions, we will only make changes under the conditions of § 327r BGB. If a change significantly impairs your access to or use of digital products you have paid for, we will inform you in advance and you may terminate the contract free of charge within 30 days.

13.3 We provide updates necessary to keep the App in conformity with the contract (§ 327f BGB). Some features require a current version of the App and of your operating system.

14. Warranty

The statutory warranty rights apply. For consumers, the provisions on contracts for digital products (§§ 327 et seq. BGB) apply in particular. Please report defects to us at hello@rep-ai.online, describing the problem as precisely as possible, so we can fix it quickly.

15. Liability

15.1 We are liable without limitation for damages:

• caused intentionally or through gross negligence;
• resulting from injury to life, body or health;
• under the German Product Liability Act (ProdHaftG);
• in cases where we have given a guarantee or fraudulently concealed a defect.

15.2 For slight negligence, we are liable only for breaches of essential contractual obligations (“cardinal obligations”). These are obligations whose fulfilment makes the proper performance of the contract possible in the first place, and on whose compliance you may regularly rely. In such cases, our liability is limited to the foreseeable damage typical for this type of contract.

15.3 Otherwise, our liability for slight negligence is excluded.

15.4 The above limitations also apply to the personal liability of our legal representatives, employees and vicarious agents.

15.5 We are not responsible for health consequences resulting from you ignoring the health and safety notices in Section 6, providing false information, or using inappropriate technique or loads. Section 15.1 remains unaffected.

15.6 You are responsible for regularly backing up data that is important to you, insofar as this is possible and reasonable (e.g. using the data export in the App).

16. Term and termination

16.1 The free user agreement runs for an indefinite period. You can terminate it at any time by deleting your account. We can terminate it with two weeks’ notice.

16.2 Paid subscriptions run for the selected term and renew as described in Section 8.

16.3 The right of both parties to terminate without notice for good cause remains unaffected. Good cause exists for us in particular if you seriously or repeatedly breach these Terms despite a warning, or if you violate applicable law through your use of the Services.

16.4 After termination, we delete your data in accordance with our Privacy Policy. Before deleting your account, you can export your data in the App.

17. Privacy

We process personal data in accordance with our Privacy Policy. Health data, such as body scan photos and weight, is processed only with your explicit consent.

18. Additional terms for users of the iOS App

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

1. These Terms are concluded between you and yeeylo only, not with Apple Inc. (“Apple”). yeeylo, not Apple, is solely responsible for the App and its content.
2. Your licence to use the App is limited to use on Apple-branded products that you own or control, and as permitted by the usage rules in the Apple Media Services Terms and Conditions.
3. Apple has no obligation whatsoever to provide maintenance or support services for the App.
4. If the App fails to conform to any applicable warranty, you may notify Apple, and Apple will refund the purchase price of the App (if any). To the maximum extent permitted by law, Apple has no other warranty obligation with respect to the App.
5. Apple is not responsible for addressing any claims by you or third parties relating to the App or your possession and use of it, including product liability claims, claims that the App fails to conform to legal or regulatory requirements, and claims under consumer protection, privacy or similar legislation.
6. In the event of a third-party claim that the App or your use of it infringes that third party’s intellectual property rights, yeeylo, not Apple, is solely responsible for the investigation, defence, settlement and discharge of such claim.
7. You represent that you are not located in a country subject to a U.S. government embargo or designated as a “terrorist supporting” country, and that you are not listed on any U.S. government list of prohibited or restricted parties.
8. Apple and its subsidiaries are third-party beneficiaries of these Terms and, upon your acceptance, Apple has the right to enforce these Terms against you as a third-party beneficiary.

19. Changes to these Terms

19.1 We may amend these Terms for the future if there is a valid reason, in particular due to changes in the law or case law, new features, or changes in technical conditions, provided the change is reasonable for you. Changes to essential contractual obligations (e.g. scope of services, prices) are not made under this section.

19.2 We will notify you of changes at least six weeks before they take effect, in the App or by email. The changes are deemed accepted if you do not object before they take effect. We will specifically point out this consequence, your right to object and the deadline in our notification. If you object, the contract continues under the previous Terms; in that case, we may terminate the contract with effect from the date the changes take effect.

20. Consumer dispute resolution

We are neither willing nor obliged to participate in dispute resolution proceedings before a consumer arbitration board (§ 36 VSBG). If you have a complaint, please contact us directly at hello@rep-ai.online; we will try to find a solution together.

21. Governing law and place of jurisdiction

21.1 These Terms and all contracts concluded under them are governed by the laws of the Federal Republic of Germany, excluding the UN Convention on Contracts for the International Sale of Goods (CISG). For consumers, this choice of law applies only insofar as it does not deprive you of the protection of mandatory provisions of the law of the country where you have your habitual residence.

21.2 If you are a merchant, a legal entity under public law or a special fund under public law, the exclusive place of jurisdiction for all disputes arising from this contract is our registered office. The same applies if you have no general place of jurisdiction in Germany or the EU. Mandatory statutory places of jurisdiction remain unaffected.

22. Final provisions

22.1 If individual provisions of these Terms are or become invalid, the validity of the remaining provisions remains unaffected. The statutory provisions apply in place of the invalid provision (§ 306(2) BGB).

22.2 We may transfer our rights and obligations under this contract to a company affiliated with us, or as part of the sale or transfer of rep.ai, provided that your legitimate interests are not affected. We will inform you in advance; you may terminate the contract if you do not agree.

Effective date: 14 October 2026 (Version 1.0)