Terms of Use

Effective 24 August 2026. Last updated 30 September 2026.

This is the End User License Agreement for TensaSkin. Please read it before you use the app. By downloading or using TensaSkin you agree to it. If you do not agree, do not use the app.

1. This agreement

These Terms of Use ("Terms") are a binding agreement between you and [YOUR LEGAL NAME], an independent developer based in [COUNTRY] ("TensaSkin", "we", "us"), covering the TensaSkin iPhone app and the website at tensaskin.com (together, the "App").

Our Privacy Policy and our Health Disclaimer are part of these Terms.

2. Who may use TensaSkin

• You must be at least 18 years old. TensaSkin is an adults-only app. It is not intended for anyone under 18 and they may not use it, with or without a parent's permission.
• You confirm that the date of birth and other information you enter is your own and is accurate.
• You confirm you are not located in a country subject to a United States government embargo or designated as a terrorist-supporting country, and that you are not listed on any United States government list of prohibited or restricted parties.

3. Your licence

We grant you a personal, limited, non-exclusive, non-transferable, revocable licence to use TensaSkin on Apple-branded products that you own or control, as permitted by the Usage Rules in the Apple Media Services Terms and Conditions. The App is licensed to you, not sold. We keep all rights not expressly granted here.

You may not:

• copy, modify, translate or create derivative works from the App;
• reverse engineer, decompile or disassemble the App, or try to derive its source code, except where that restriction is prohibited by law;
• rent, lease, lend, sell, sublicense or redistribute the App;
• remove or alter any copyright or other proprietary notice;
• use the App to build a competing product, or extract its content or data in bulk by scraping, automated means or otherwise;
• interfere with the App's operation, circumvent its usage limits or security measures, or access it by any means other than the interface we provide.

4. TensaSkin is not medical advice

TensaSkin is an educational and informational app. It is not a medical device, it does not diagnose, treat, cure or prevent any condition, and nothing in it is medical advice.

• We do not promise you a result. Cellulite is fibrous connective tissue pulling on the skin over fat, and nothing in this app changes that structure. What training and a modest calorie deficit change is the muscle underneath and the fat above it, which can change how an area looks over months. Individual response varies widely. Nothing in the App is a guarantee that you specifically will see a change, and no outcome is promised at any timescale.
• The evidence grades are our summary, not a diagnosis. The App labels its own steps as having moderate, limited or no supporting evidence. Those labels are our honest reading of the published literature at the time of writing. They are not medical advice, they may be superseded by later research, and they are not a substitute for a professional who knows you.
• Nutrition, water, sleep and activity targets follow general adult guidance and are calculated from the figures you enter. They are not a personalised medical, dietary or training plan.
• The AI coach can be wrong. It does not give diagnoses, dosages or supplement recommendations, and you should not act on anything it says about your health without checking with a medical professional.
• Always speak to a doctor about any concern with your skin, circulation, weight or eating, and never disregard or delay professional medical advice because of something you saw in TensaSkin.

The full text is on our Health Disclaimer page and forms part of these Terms.

5. Physical activity, and the risk you accept

TensaSkin includes strength, mobility and stretching routines. Physical activity carries a risk of injury. Before starting any routine, make sure it is appropriate for you, and consult a doctor first if you are pregnant or postpartum, have an injury or a medical condition, or have any reason to think exercise may not be safe for you.

You take part in these routines voluntarily and at your own risk. Stop immediately if you feel pain, dizziness or discomfort, and seek medical attention if you need it. To the fullest extent permitted by law, we are not responsible for any injury arising from your use of these routines.

6. Your account

Most of TensaSkin works without an account. An account, created with Sign in with Apple, is needed for the AI features. You are responsible for keeping access to your Apple ID secure and for activity that happens under your account.

You can delete your account at any time from Settings inside the App. Deleting is permanent and erases both the server-side account and the App's data on your device, progress photos included. It does not cancel your subscription. See below.

7. Subscriptions, billing and cancellation

TensaSkin offers an auto-renewing subscription, currently on a monthly and a yearly plan. The current price, plan length and any free trial are shown in the App before you confirm the purchase, and they may differ by country.

• Payment. Payment is charged to your Apple ID account when you confirm the purchase. All billing is handled by Apple. We never receive your payment details.
• Automatic renewal. Your subscription renews automatically for the same period at the same price unless you cancel it at least 24 hours before the end of the current period. Your Apple ID is charged for the renewal within 24 hours of the end of the current period.
• Cancelling. Cancel at any time in Settings → your name → Subscriptions on your iPhone, or through your Apple ID account settings. Cancelling stops the next renewal; you keep access until the end of the period you have already paid for. Deleting the App or your TensaSkin account does not cancel the subscription.
• Free trials. Where a free trial is offered, it converts into a paid subscription automatically at the end of the trial unless you cancel at least 24 hours before it ends. If you buy a subscription while a free trial is running, the unused part of the trial is forfeited. Trials are limited to one per user or family, as determined by Apple.
• Refunds. Purchases are handled by Apple, so refunds are at Apple's discretion under the Apple Media Services Terms and Conditions. We cannot issue, approve or reverse a refund. Request one at reportaproblem.apple.com. Your statutory rights, including any right of withdrawal you have under consumer law where you live, are not affected by this paragraph.
• Price changes. If we change the price of a plan, Apple will tell you and ask for your consent before the change applies to your subscription, as required by Apple's rules.
• Restoring a purchase. If your subscription is not showing, use "Restore Purchases" in Settings.

8. Using the AI features

Meal scanning and the AI coach are subject to fair-use limits per day and per month. These exist to keep the features affordable and to stop abuse. We may adjust them, and we may temporarily suspend the AI features for maintenance, cost control or safety.

You agree not to:

• use the AI features to generate or seek content that is unlawful, harassing, hateful, sexual, or that encourages self-harm, disordered eating or restriction;
• attempt to manipulate the AI into ignoring its safety instructions, or use it for anything other than the training, nutrition and routine topics it is built for;
• upload photographs of other people without their permission, or any image you do not have the right to submit;
• use automated tools to make requests, or otherwise attempt to exceed the usage limits.

AI output is generated automatically and may be inaccurate, incomplete or wrong. You are responsible for checking anything you rely on. Nutrition figures returned by a scan are estimates, and portion sizes estimated from a photograph are approximate by nature.

9. Content you submit

You keep ownership of everything you create in the App. Your progress photos never leave your device, so no licence of any kind is granted to us over them and we could not use them if we wanted to.

For the meal photos and coach messages that do pass through our servers, you grant us a limited licence to process them solely to provide the feature you asked for: sending them to our AI providers and returning the result to you. As set out in our Privacy Policy, we do not store them, and we do not use them to train models.

You confirm you have the right to submit whatever you submit, and that doing so does not break the law or anyone else's rights.

10. Our intellectual property

The App, its name, logo, design, text, graphics, and the software behind it are owned by us or our licensors and are protected by copyright and other laws. These Terms give you no right to use our name or branding.

11. Changes to the App

We may change, suspend or discontinue any part of the App at any time. We may also stop supporting older versions of iOS or of the App. If we discontinue a paid feature entirely during a period you have paid for, contact us and we will help you seek an appropriate remedy through Apple.

12. Termination

You may stop using TensaSkin at any time by deleting the App. We may suspend or terminate your access if you break these Terms, if we are required to by law, or if we reasonably believe your use is harmful to other users, to a third party or to us. The sections that by their nature should survive termination (disclaimers, limitation of liability, indemnity and governing law) do survive it.

13. Disclaimer of warranties

To the fullest extent permitted by law, the App is provided "as is" and "as available", without warranty of any kind. We disclaim all implied warranties, including merchantability, fitness for a particular purpose, accuracy and non-infringement.

We do not warrant that the App will be uninterrupted, error-free or secure, that any estimate, nutrition figure, evidence grade or AI answer will be accurate, or that using TensaSkin will produce any particular result. Some jurisdictions do not allow the exclusion of implied warranties, so parts of this section may not apply to you, and nothing here limits any statutory consumer right you have that cannot be limited.

14. Limitation of liability

To the fullest extent permitted by law, we are not liable for any indirect, incidental, special, consequential or punitive damages, or for any loss of profits, data, goodwill or opportunity, arising out of or connected to your use of the App. This includes any decision you make based on an estimate, a target, an evidence grade or an AI answer; any personal injury arising from a routine you performed; and the loss of progress photos or other data stored on your device, which we never hold a copy of and cannot restore.

Our total liability to you for all claims connected to the App is limited to the greater of the amount you paid us for TensaSkin in the 12 months before the claim arose, or 50 US dollars.

Nothing in these Terms excludes or limits our liability for death or personal injury caused by our negligence, for fraud or fraudulent misrepresentation, or for anything else that cannot lawfully be excluded or limited. Some jurisdictions do not allow certain limitations, so parts of this section may not apply to you.

15. Indemnity

You agree to indemnify and hold us harmless from any claim, loss, liability or expense (including reasonable legal fees) arising from your misuse of the App, your breach of these Terms, or your violation of any law or third-party right. This does not apply to the extent the claim arises from our own breach or negligence, and it does not apply where you are a consumer and the law where you live does not permit it.

16. Terms that concern Apple

Apple requires the following, and you should read it carefully:

1. This agreement is with us, not Apple. These Terms are between you and [YOUR LEGAL NAME] only. Apple is not a party to them. We, not Apple, are solely responsible for the App and its content.
2. Scope of licence. Your licence to use the App is limited to a non-transferable licence to use it on any Apple-branded products that you own or control, as permitted by the Usage Rules in the Apple Media Services Terms and Conditions.
3. Maintenance and support. We are solely responsible for providing any maintenance and support for the App. Apple has no obligation whatsoever to furnish any maintenance and support services.
4. Warranty. We are solely responsible for any product warranties, whether express or implied by law, to the extent they are not effectively disclaimed. If the App fails to conform to any applicable warranty, you may notify Apple, and Apple will refund the purchase price of the App to you. To the maximum extent permitted by applicable law, Apple has no other warranty obligation whatsoever with respect to the App, and any other claims, losses, liabilities, damages, costs or expenses attributable to any failure to conform to any warranty are our sole responsibility.
5. Product claims. We, not Apple, are responsible for addressing any claims by you or any third party relating to the App or your possession and use of it, including product liability claims, any claim that the App fails to conform to any applicable legal or regulatory requirement, and claims arising under consumer protection, privacy or similar legislation.
6. Intellectual property claims. If a third party claims the App infringes their intellectual property rights, we, not Apple, are solely responsible for the investigation, defence, settlement and discharge of that claim.
7. Third-party terms. You must comply with any applicable third-party terms of agreement when using the App.
8. Third-party beneficiary. Apple and Apple's subsidiaries are third-party beneficiaries of these Terms, and upon your acceptance of them Apple has the right (and is deemed to have accepted the right) to enforce these Terms against you as a third-party beneficiary.
9. Contact. Questions, complaints and claims about the App should be directed to support@tensaskin.com.

17. Governing law and disputes

These Terms are governed by the laws of [COUNTRY], without regard to its conflict of law rules, and the courts of [COUNTRY] have jurisdiction over any dispute.

If you are a consumer resident in the European Union, the United Kingdom or another country whose law gives you the protection of mandatory local rules, nothing in this section deprives you of that protection or of the right to bring proceedings in the courts of the country where you live.

Before starting a formal dispute, please email us at support@tensaskin.com. Most things are resolved faster that way, and we will make a genuine attempt to sort it out.

18. General

• Changes to these Terms. We may update these Terms. The date at the top will change, and if a change is significant we will tell you in the App before it takes effect. Continuing to use TensaSkin after that means you accept the new Terms.
• Severability. If any part of these Terms is found unenforceable, the rest stays in force.
• No waiver. If we do not enforce a provision, that is not a waiver of our right to enforce it later.
• Entire agreement. These Terms, together with the Privacy Policy and the Health Disclaimer, are the entire agreement between you and us about the App.
• Assignment. You may not assign these Terms. We may assign them in connection with a merger, acquisition or sale of assets.

19. Contact