Terms of Use — 6Feets
Last updated: August 11, 2026
1. Purpose
These terms govern the use of the 6Feets mobile app, published by Jack Kinosky, a sole proprietor (in French, an entrepreneur individuel — France's micro-enterprise status) registered in France (see the legal notice). They form the contract between you and the publisher.
2. Accepting these terms
Installing and using 6Feets means you accept these terms. If you don't agree with them, don't use the app.
3. Age and parental consent
6Feets is aimed at teenagers who are still growing, and at the parents who support them.
If you are under 15, one of your parents — or whoever holds parental authority — must consent along with you before you use the app and before any purchase.
No purchase should be made without the consent of whoever holds the payment method. Apple's "Ask to Buy" and Family Sharing settings let parents manage this.
4. What 6Feets is — and what it isn't
6Feets is a habit-tracking app: sleep, food, physical activity, and height measurements. Based on what you enter, it displays an estimated adult height range and lifestyle advice.
Here's what you should understand before using the app:
- 6Feets doesn't make you grow. No feature, no exercise, and no advice in the app promises inches or centimeters, and the app never claims to. The habits it suggests aim to avoid wasting your growth potential; they don't move it.
- The range shown is a statistical estimate, calculated on your phone from your answers and public growth charts. It's neither a certain prediction nor the result of a medical measurement, and it can be wrong.
- 6Feets is not a medical device and doesn't replace a doctor, a pediatrician, or a dietitian. It makes no diagnosis. For any question about your growth, your diet, your puberty, or your health, talk to a healthcare professional.
- 6Feets doesn't recommend any supplement, any treatment, any hormone.
- Never change an ongoing treatment because of something you read in the app.
5. Trial, subscription, and payment
5.1 The trial
The app offers a free 5-day trial, with no account and no payment method required. It starts the first time you launch the trial and doesn't reset: reinstalling the app doesn't open a new trial.
5.2 The subscription
Beyond the trial, full access is paid, through a subscription.
- The price, duration, and billing period are shown clearly on the purchase screen, before any payment, as well as on the app's App Store listing. No amount is written in this document, so it can never contradict what you see on screen.
- The purchase is processed by Apple, through your App Store account. The publisher never sees your payment details.
- The subscription renews automatically at the end of each period, unless canceled at least 24 hours before renewal. This is the standard rule for App Store subscriptions.
5.3 Canceling
You can cancel anytime, in three taps, from Settings → Account → Manage My Subscription, which opens directly to the Subscriptions page of your Apple account. This is the only place where a subscription bought inside an app can actually be canceled — the publisher has no control over it.
Cancellation takes effect at the end of the period you've already paid for. You keep access until then.
5.4 Refunds and the right of withdrawal
Refund requests are made with Apple (reportaproblem.apple.com), who handles them under its own terms. The publisher has no power to refund a purchase processed by Apple.
Because digital content is made available immediately after purchase, your 14-day right of withdrawal ends as soon as performance begins — which you agree to by making the purchase.
5.5 Restoring a purchase
Settings → Account → Restore Purchases brings back a subscription already paid for on the same Apple account, after a new phone or a reinstall. Switching devices never costs you a second payment.
6. Your account
Sign-in works only through Sign in with Apple. There's no password and no email address to enter.
An account is optional: the trial and all daily tracking work without one. It's used to find your tracking data again if you switch phones or reinstall the app.
You can delete your account at any time from Settings → Account → Delete My Account. Deletion is permanent and takes the associated data with it (see the privacy policy).
7. What we ask you not to do
- Knowingly provide false information about your age or your child's age.
- Bypass the trial, the payment, or the app's usage limits.
- Decompile, disassemble, or extract the app's content, beyond what the law expressly allows.
- Use the app or its content for commercial purposes without written consent.
- Automate use of the app or put abnormal load on its servers.
No space for users to publish content to each other exists at this time: the community tab only collects interest in a future feature. If such a space opens, publishing and moderation rules will be added here before it launches.
8. Intellectual property
The app, its code, its text, its illustrations, its name, and its visual identity belong to the publisher or are licensed to it. Buying a subscription gives you a personal, non-exclusive right to use the app — not a right over its content.
The data you enter remains yours. You can retrieve it at any time from Settings → Privacy and Data → Download My Data.
9. Availability and liability
The publisher does its best to keep the app running, without guaranteeing uninterrupted availability: an iOS update, a provider outage, or a network failure can make it temporarily unavailable.
The app works mostly offline; syncing, however, requires a connection.
The publisher's liability cannot be engaged for damage resulting from use that violates these terms, from information knowingly entered incorrectly in the questionnaire, or from a health decision made on the sole basis of the app. Nothing in this paragraph limits the publisher's liability in cases where the law forbids it, in particular in the event of gross negligence or bodily injury.
10. Suspension and termination
You can stop using the app whenever you want, uninstall it, and delete your account.
The publisher may suspend a user's access in the event of a clear breach of § 7, after notifying the user unless there's an emergency.
11. Changes to these terms
These terms can change. The date at the top shows the version in force. A material change will be flagged inside the app. Continuing to use 6Feets after a change means you accept the new version; if you don't agree with it, you can cancel your subscription and delete your account.
12. Governing law and disputes
These terms are governed by French law.
If a problem comes up, write first to to be completed — contact email: a complaint is almost always resolved there.
Failing an agreement, and in accordance with Articles L. 611-1 et seq. of the French Consumer Code (Code de la consommation), you can turn to a consumer mediator free of charge: to be completed — consumer mediator
The European Union's online dispute resolution platform is deliberately not mentioned here: it stopped operating on July 20, 2025, and pointing to it would send people to a closed door.
Failing an amicable resolution, French courts have jurisdiction under the conditions set by law.