The terms, in plain words.

Effective 8 September 2026. These terms are between you and FITHER, an independent developer in the United States ("we", "us") and cover the FITHER app for iPhone and this website.

At a glance

FITHER builds strength sessions for you. It is not medical advice, and it cannot see you. Train within what your body and your surroundings allow.
The subscription is billed by Apple, renews until you cancel, and can be cancelled in your iPhone settings at any time.
Everything in the app is ours; your use of it is personal.

1. Using FITHER

By downloading or using the app you agree to these terms and to our privacy policy. If you do not agree, please do not use the app. You must be at least 18, or the age of majority where you live.

2. What the app does

FITHER builds a strength session from an expert-authored library of movements, shaped by the answers you give each day and by your history. Sessions are built and recorded on your phone. We may change, add or remove movements and features as the app develops.

3. Your health and safety

FITHER is a training app, not a medical service. Nothing in it is medical advice, and it is not a substitute for advice from a doctor or physiotherapist who knows you.

Speak to a health professional before using the app if you are pregnant or recently gave birth, are recovering from injury, surgery or illness, or have a condition that affects exercise.
Stop if you feel pain, dizziness or anything that does not feel right. Telling the app that something is sore changes what it offers, but it does not examine you.
You are responsible for your surroundings: enough space, a firm floor, and a chair braced against a wall when the app asks for one.

You use the app at your own risk, and you agree that we are not responsible for injury that results from training beyond what your body, your health or your surroundings allow.

4. Your account

You can use FITHER without an account. If you sign in with Apple, you are responsible for keeping your Apple ID secure. Your progress is stored on your phone; if you delete the app or erase your data in Settings, it is gone, and we cannot restore it.

5. Subscriptions, trials and purchases

Plans. FITHER is offered as a yearly subscription (US $59.99) and a monthly subscription (US $12.99). Apple sets the equivalent price in your local currency and shows it before you confirm.
Free trial. The yearly plan starts with a 7-day free trial for new subscribers. If you do not cancel before the trial ends, the yearly subscription begins and is charged to your Apple ID.
Renewal. Subscriptions renew automatically at the end of each period unless you cancel at least 24 hours before it ends. Manage or cancel in your iPhone's Settings under your Apple ID and Subscriptions. Cancelling keeps access until the end of the period already paid for.
One-time purchases. We may offer a one-time purchase that unlocks the app without renewal. It is not a subscription and does not renew.
Refunds. Payments go through Apple, and refunds are handled by Apple under its terms. We cannot issue refunds ourselves.
Price changes. If a price changes, Apple tells you in advance and asks for your agreement where its rules require it.

6. What you may and may not do

Your license to use FITHER is personal and non-commercial. You may not copy, sell, rent or redistribute the app or its content, including the movement library, cues, illustrations and voice recordings; reverse-engineer it; or use it to build a competing product. You may not use the app in a way that breaks the law or harms others.

7. Our content

The app, this website and everything in them, including the name FITHER, the mark, the movement library, the coaching text and voice, and the illustrations, belong to us or our licensors. Nothing here gives you ownership of any of it.

8. Things you share

If you share a card or a link from the app, you choose what to share and who sees it. If you send us feedback, you give us permission to use it to improve the app, with no obligation to you.

9. Availability

We work to keep the app available and working offline once installed, but we do not promise it will be free of errors or interruptions. We may update, change or withdraw features, and we may stop offering the app altogether with reasonable notice.

10. Liability

The app is provided as it is. To the extent the law allows, we exclude all warranties and are not liable for indirect or consequential loss, and our total liability to you for anything arising from the app is limited to the amount you paid us in the twelve months before the claim. Some states do not allow the exclusion of certain warranties or the limitation of certain damages, so parts of this section may not apply to you; in that case our liability is limited to the smallest extent the law allows.

11. Ending things

You can stop using the app at any time; erasing your data in Settings and deleting the app ends everything on your side. We may suspend or end your access if you break these terms.

12. Changes to these terms

If we change these terms, the date at the top changes, and a change that matters will be in the app's release notes before it applies. Continuing to use the app after a change means you accept it.

13. Apple

FITHER is distributed through the App Store, and these terms are between you and us, not Apple. Apple has no obligation to maintain or support the app. If the app fails to conform to a warranty, you may tell Apple and Apple may refund the price you paid; beyond that, Apple has no warranty obligation for the app. We, not Apple, are responsible for the app and for addressing any claim about it, including product liability, legal compliance and consumer protection, and any claim that the app infringes someone else\'s intellectual property. Apple and its subsidiaries are third-party beneficiaries of these terms and may enforce them against you. You confirm that you are not in a country under a United States embargo or on a United States list of prohibited parties.

14. Governing law

These terms are governed by the laws of the State of Delaware and the United States, without regard to conflict-of-law rules. Any dispute is brought in the state or federal courts located in Delaware, except that you may bring a claim in the small claims court where you live. Nothing here takes away protections you have as a consumer under the law of the state where you live.

15. Contact

FITHER, United States. hello@fither.pro.