Terms of use

Last changed: 17 October 2026

These terms cover the ALTiDUX app for iPhone and Apple Watch and this website. They are written to be read: if anything is unclear, write to hello@altidux.com.

Who we are

What ALTiDUX is

ALTiDUX builds training plans for races, analyses courses, estimates race times and guides runs and races on Apple Watch. Plans, paces, predictions and the pilot's words are estimates worked out from what you enter, from your runs and from published sports science; they can be wrong, for example when a GPS or heart-rate reading is.

Your health and your safety

• ALTiDUX is a training tool, not a medical device, and nothing in it is medical advice. It does not diagnose, treat or prevent any condition.
• Talk to a doctor before you start, or before you train harder, if you have a heart, lung or metabolic condition, high blood pressure, are pregnant, are coming back from illness or injury, take medication that affects your heart rate, or are new to hard exercise.
• Stop and get help if you feel chest pain, faintness, unusual breathlessness or pain that does not go away.
• You decide how hard to go. Watch the road, the trail, the traffic and the weather rather than the screen; follow the rules of each race and its organisers.

The app's licence

The app is licensed to you under Apple's standard Licensed Application End User License Agreement. These terms add to it; where they differ on the app, Apple's agreement prevails.

ALTiDUX PRO

• ALTiDUX PRO is a subscription bought through Apple's App Store, monthly or yearly, with the same features in both. The price is shown in the App Store before you buy.
• A free trial, where offered, turns into a paid subscription at its end unless you cancel at least 24 hours before it ends.
• A subscription renews automatically unless you cancel at least 24 hours before the end of the period. Cancel in Settings, your name, Subscriptions.
• Payment, renewal and refunds are handled by Apple under Apple's terms (refunds: reportaproblem.apple.com). Your rights as a consumer under the law of your country are not affected.
• When PRO ends, nothing you made is deleted or hidden; what needs PRO stops being worked out anew.

Live tracking

Anyone with your live-tracking link can see your position during the race. Share it only with people you want to follow you. You can switch it off at any time; the page is then deleted.

Fair use

Please do not misuse the app, the website or our server: no attempts to break in, to overload it, to read other people's races, or to copy the app beyond what the law allows.

What belongs to whom

The name ALTiDUX, its logos, the app and the content of this website belong to us. The photographs on this website are generated with AI. Course files you import stay yours or their authors'.

Our responsibility

We build and run ALTiDUX with reasonable care. Nothing in these terms limits our liability for death or personal injury caused by our negligence, for fraud, or for anything else the law does not allow us to limit, and nothing affects your statutory rights as a consumer. We are not responsible for losses that were not foreseeable, or that come from using ALTiDUX against these terms or against the health and safety advice above.

Changes

We may change the app and these terms. When a change matters, we say so in the app or on this page before it takes effect, with the date at the top.

Law and courts

These terms are governed by the law of England and Wales. If you are a consumer living in the European Union, you also keep the protection of the mandatory rules of the country where you live, and you may bring a claim in its courts.