The Dr Gains app (the “App”) is a fitness and wellness application that includes, among other things, exercise programmes, training guidance, blood flow restriction (“BFR”) training content, calculators (including one-rep max and BFR pressure calculators), an AI chat feature, a supplements schedule, and a store. The App is intended for general fitness and wellness purposes only.
“Dr Gains” is a brand persona owned by a third party and licensed for use in the App. “Dr Gains” is NOT a medical doctor, physician, registered healthcare professional, dietitian, nutritionist, physiotherapist, or licensed personal trainer. Nothing in the App — including any content, programme, calculator output, AI chat response, video, or product listing — constitutes medical advice, diagnosis, treatment, prescription, or any other form of professional advice. Use of the App is at your sole risk.
Exercise, in particular BFR training, carries inherent risks that can result in serious injury or death. You must consult a qualified medical professional before beginning any exercise programme, taking any supplement, or acting on any information obtained through the App. If you experience pain, dizziness, numbness, tingling, shortness of breath, chest pain, or any other unusual symptom, stop immediately and seek medical attention.
By creating an account or using the App, you confirm that you have read, understood, and agree to be bound by these Terms and our Privacy Policy, that you are at least 18 years old, and that you assume all risks associated with your use of the App.
1.1 These terms and conditions (the “Terms”) govern your access to and use of the Dr Gains mobile application, any associated websites, content, features, products, and services (together, the “App” or “Service”).
1.2 The App is operated by System7 Ventures Limited, a company registered in England and Wales with company number 15881148, whose registered office is at 21 Arlington Street, London, England, SW1A 1RN (“System7”, “we”, “us”, or “our”). System7 is the sole operator of the App and the owner of all rights in the App itself (for the avoidance of doubt, System7 does not own the “Dr Gains” brand, which is licensed from a third party).
1.3 These Terms form a legally binding agreement between you and System7. By downloading, installing, accessing, or using the App, you agree to these Terms. If you do not agree, you must not use the App.
1.4 We may amend these Terms from time to time. Where changes are material, we will notify you through the App and/or by email. Your continued use of the App after such notification constitutes acceptance of the amended Terms.
1.5 These Terms incorporate by reference our Privacy Policy, any subscription-specific terms presented at the point of purchase, and the Apple Media Services Terms and Conditions insofar as they apply to purchases made through the Apple App Store.
In these Terms:
3.1 You acknowledge and agree that:
4.1 The App is intended exclusively for adults aged 18 or over. By using the App you represent and warrant that:
4.2 We reserve the right to suspend or terminate any Account where we reasonably believe any of the above is untrue.
The App and all Content are provided for general informational, educational, and fitness purposes only. They are not a substitute for professional medical advice, diagnosis, or treatment. You must always seek the advice of your physician or other qualified health provider with any questions you have regarding a medical condition or before starting, changing, or stopping any exercise, training, diet, supplement, or treatment programme.
Exercise and resistance training carry inherent risks, including but not limited to: muscle strains and tears; ligament and tendon injuries; joint damage; bone fractures; lightheadedness; loss of consciousness; dehydration; heat illness; rhabdomyolysis; cardiac events including heart attack and stroke; aggravation of pre-existing conditions; and, in rare cases, death. You voluntarily assume all such risks in using the App.
BFR training involves the deliberate restriction of venous blood flow using cuffs or bands and carries elevated risks beyond general exercise, including but not limited to: nerve compression and injury; bruising and skin damage; venous thromboembolism (blood clots); muscle damage and rhabdomyolysis; elevated blood pressure; fainting; and, in rare cases, serious cardiovascular events. You must not use BFR training unless you have been cleared by a qualified medical professional and are using equipment and technique appropriate to your experience level. BFR pressure recommendations produced by the App (including any “% AOP” or “mmHg” values) are general suggestions based on user-entered inputs and are NOT medically validated, personalised prescriptions. You are solely responsible for determining safe pressures for your body, and you must stop immediately and remove any cuff or band if you experience pain, numbness, tingling, discolouration, prolonged cold sensation, or any other abnormal symptom.
Where the App invites you to enter blood pressure readings (for example, for the BFR pressure calculator), you acknowledge that:
All calculators in the App (including the 1RM calculator and the BFR pressure calculator) produce estimates based on general formulas and the inputs you provide. Outputs are approximations for fitness purposes only, are not personalised prescriptions, and are not guaranteed to be appropriate, safe, or accurate for you.
The App may display, recommend, track, or facilitate the purchase of dietary supplements. You acknowledge that:
The “Ask Dr. Gains” feature is an artificial intelligence chat interface powered by a large language model provided by OpenAI. You acknowledge that:
6.1 You voluntarily assume all risk of injury, illness, death, property damage, or other loss arising from or relating to your use of the App, including without limitation any exercise, training programme, BFR session, supplement intake, or action you take in reliance on Content or AI Chat output.
6.2 To the fullest extent permitted by applicable law, you release, waive, discharge, and agree not to sue System7, its affiliates, directors, officers, employees, contractors, licensors (including the licensor of the Dr Gains Brand), and agents from and against any and all claims, liabilities, damages, losses, costs, and expenses (including legal fees) arising out of or relating to your use of the App, whether based in contract, tort (including negligence), statute, or otherwise.
6.3 Nothing in this Clause 6 or elsewhere in these Terms excludes or limits liability that cannot be excluded or limited under applicable law, including (in the UK) liability for death or personal injury caused by negligence, for fraud or fraudulent misrepresentation, under section 2(3) of the Consumer Protection Act 1987, or any other liability that cannot lawfully be excluded.
7.1 To access most features you must create an Account. You can register using email/password or via supported third-party identity providers (such as Sign in with Apple or Google) using OAuth.
7.2 You must provide accurate information and keep your credentials confidential. You are responsible for all activity under your Account.
7.3 You must notify us immediately at the email address in Clause 24 if you suspect any unauthorised access to your Account.
7.4 We may suspend or close your Account if you breach these Terms, misuse the App, or if we are required to do so by law.
Access to the App's primary functionality is provided on a subscription basis. Subscriptions are sold by us to you as a digital service, processed through the Apple App Store using Apple's in-app purchase system, and are subject to the Apple Media Services Terms and Conditions in addition to these Terms.
Subscription prices, billing frequencies, and any free trial or introductory terms are displayed in the App at the point of purchase. Subscriptions renew automatically at the end of each billing period at the then-current price unless cancelled at least 24 hours before renewal via your Apple ID settings. Your Apple ID will be charged at confirmation of purchase and again at each renewal.
You may purchase additional programmes, program unlocks, or other digital content from within the App. These are processed through Apple's in-app purchase system and are one-off purchases that are not refundable by us except where required by law or Apple policy.
Where we sell physical products directly (including certain Dr Gains-branded products), the purchase is processed via Stripe, we act as seller of record, and shipping, returns, and statutory rights are governed by the product-specific terms and UK consumer law. Full terms of sale will be provided at checkout.
The App displays and links to products sold by third-party retailers with whom System7 has an affiliate relationship. When you purchase an affiliate product, your contract is with that third-party retailer, not with System7. The third-party retailer is solely responsible for the product, pricing, order processing, fulfilment, shipping, warranty, returns, refunds, and customer service. System7 may receive a commission on qualifying purchases. Product listings in the App are not an endorsement or guarantee of safety or suitability — see Clause 5.6.
Prices shown may or may not include VAT or other applicable taxes; where payment is via Apple, taxes are handled by Apple in accordance with their terms.
9.1 All intellectual property rights in and to the App (including software, design, written content, videos, graphics, and compilations of third-party content as integrated into the App) are owned by or licensed to System7. All rights in the Dr Gains Brand are owned by the third-party licensor and licensed to System7 for use in the App.
9.2 Anatomy visualisations, animations, and related content are provided by Muscle & Motion and remain the property of their respective owners.
9.3 Subject to your compliance with these Terms, we grant you a limited, non-exclusive, non-transferable, non-sublicensable, revocable licence to access and use the App for your personal, non-commercial use on a device that you own or control.
9.4 You must not: copy, reproduce, distribute, publicly display, publicly perform, modify, translate, create derivative works from, reverse engineer, decompile, disassemble, or otherwise attempt to derive source code from the App or any Content; remove any proprietary notices; use the App or Content to train, fine-tune, or develop any machine learning model; or use any automated means (including scraping, bots, or crawlers) to access the App.
10.1 You retain ownership of User Content you submit to the App.
10.2 You grant System7 a worldwide, non-exclusive, royalty-free, sublicensable, transferable licence to host, store, reproduce, modify (for technical purposes), adapt, publish, translate, and use your User Content solely to operate, provide, improve, and personalise the App and related services for you, and to comply with law. Where your User Content contains health-related information (such as blood pressure readings or workout logs), our processing of that information is governed by the Privacy Policy and is carried out on the basis of your explicit consent.
10.3 You represent and warrant that you have all rights necessary to submit your User Content and that it does not infringe any third-party rights or violate any law.
10.4 We may remove User Content that we reasonably believe violates these Terms, any third-party right, or any law, or that is otherwise objectionable.
You agree not to:
12.1 The App integrates with, or contains links to, third-party services and content, including (without limitation) OpenAI (AI Chat), Muscle & Motion (anatomy visualisations), Apple (App Store, Sign in with Apple, Apple Health), Google (OAuth), Stripe (payments), Google Cloud Platform (hosting), Sentry (error monitoring), ActiveCampaign (email and messaging), and third-party affiliate retailers.
12.2 We are not responsible for the content, availability, accuracy, or practices of any third-party service or website. Your use of any third-party service is governed by that third party's terms and privacy policy, and you access and use it at your own risk.
Where you download the App from the Apple App Store, the following additional terms apply, and in the event of any conflict with the rest of these Terms, these Apple-specific terms prevail to the extent of the conflict:
14.1 We will use reasonable efforts to make the App available, but do not guarantee uninterrupted availability. The App may be unavailable due to maintenance, updates, technical issues, or factors beyond our reasonable control.
14.2 We may modify, suspend, or discontinue all or any part of the App at any time, with or without notice. Where we discontinue a paid feature, we will provide a pro-rata refund or credit where required by law.
15.1 Except as expressly set out in these Terms or as required by law, the App and all Content are provided “as is” and “as available” without warranties of any kind, whether express, implied, statutory, or otherwise.
15.2 To the maximum extent permitted by law, we disclaim all implied warranties, including warranties of merchantability, satisfactory quality, fitness for a particular purpose, accuracy, non-infringement, and any warranty arising from course of dealing or usage of trade.
15.3 Without limiting the foregoing, we do not warrant that: (a) the App will meet your requirements; (b) the App will be uninterrupted, timely, secure, or error-free; (c) the results obtained from the App will be accurate or reliable; or (d) any errors in the App will be corrected.
15.4 Nothing in this Clause 15 limits any statutory rights you have as a consumer that cannot be excluded or limited under applicable law.
16.1 Nothing in these Terms excludes or limits our liability for: (a) death or personal injury caused by our negligence; (b) fraud or fraudulent misrepresentation; (c) breach of terms implied by the Consumer Rights Act 2015 (where you are a consumer); (d) defective products under the Consumer Protection Act 1987; or (e) any other liability that cannot lawfully be excluded or limited.
16.2 Subject to Clause 16.1:
16.3 You acknowledge that the allocation of risk in these Terms (including the pricing of any paid features) reflects the limitations set out in this Clause 16.
To the fullest extent permitted by law, you agree to indemnify, defend, and hold harmless System7, its affiliates, and their respective directors, officers, employees, contractors, licensors, and agents from and against any and all claims, liabilities, damages, losses, costs, and expenses (including reasonable legal fees) arising out of or relating to: (a) your use or misuse of the App; (b) your breach of these Terms; (c) your User Content; (d) your violation of any third-party right, including any intellectual property, privacy, or publicity right; or (e) your failure to consult a qualified medical professional as required by these Terms.
18.1 You may terminate these Terms at any time by deleting your Account and ceasing to use the App. Cancellation of a subscription must additionally be done via your Apple ID settings.
18.2 We may terminate or suspend your access to the App immediately, with or without notice, if you breach these Terms, misuse the App, or if required by law.
18.3 Clauses that by their nature should survive termination — including Clauses 5, 6, 9, 10.2, 15, 16, 17, 19, and 20 — will survive.
These Terms and any dispute or claim arising out of or in connection with them (including non-contractual disputes or claims) are governed by and construed in accordance with the laws of England and Wales.
If you are a consumer resident in the United Kingdom, the courts of England and Wales will have non-exclusive jurisdiction, but you may also bring proceedings in the courts of the part of the United Kingdom in which you live. If you are a consumer resident in the European Union, you may bring proceedings in the courts of the Member State in which you live, and the mandatory consumer protection provisions of your country of residence will apply to the extent they afford you greater protection.
20.1 Entire agreement. These Terms, together with the Privacy Policy and any terms presented at the point of purchase, constitute the entire agreement between you and System7 in relation to the App and supersede all prior agreements and understandings.
20.2 Severability. If any provision of these Terms is held invalid or unenforceable, the remaining provisions will remain in full force and effect.
20.3 No waiver. A failure or delay in exercising any right under these Terms is not a waiver of that right.
20.4 Assignment. You may not assign or transfer your rights under these Terms without our prior written consent. We may assign or transfer our rights and obligations under these Terms at any time without notice.
20.5 Third-party rights. Except for Apple in accordance with Clause 13 and our affiliates and licensors (who may enforce Clauses 5, 6, 9, 15, 16, and 17), no one other than a party to these Terms has any right to enforce any of them under the Contracts (Rights of Third Parties) Act 1999.
20.6 Notices. We may give notice to you through the App or by email to the address associated with your Account. You must give notice to us by email to the address in Clause 24.
20.7 Force majeure. We are not liable for any failure or delay in performance caused by events beyond our reasonable control.
20.8 Language. These Terms are drafted in English. Any translation is provided for convenience only; the English version prevails.
We may amend these Terms from time to time. Material changes will be notified to you through the App and/or by email at least 14 days before they take effect, save where earlier changes are required by law. Your continued use of the App after changes take effect constitutes acceptance.
If you believe the App contains any content that infringes your rights, breaches these Terms, or that raises a safety concern, please contact us at the address in Clause 24. We take such reports seriously and will investigate.
Our company details, registered address, and trading name are set out in Clause 1.2 and Clause 24. If you have a complaint that we are unable to resolve, you may be able to submit it to the UK Online Dispute Resolution platform at https://ec.europa.eu/consumers/odr (for EU consumers) or seek advice from Citizens Advice (UK).
If you have any questions about these Terms or the App, please contact us at:
These Terms were last updated on 21 April 2026.