SUPPORT
Getting help.
One address, answered by the person who writes the app. Below is what to include so the first reply is useful, and where to go for the three things that have their own page: deleting data, privacy rights and billing.
MISE À JOUR · September 10, 2026
1. Write to us
amine@kardiooo.com — in French or in English, whichever you prefer.
We answer within two working days, and usually the same day. There is no support tier and no queue: KARDIOO is published by a one-person company, so the reply comes from the person who wrote the code you are writing about.
2. What to include
None of it is mandatory, but each of these saves an exchange:
The email address of your account, so we can find it. The screen you were on and what you expected instead. Your iPhone model and iOS version, from Settings ▸ General ▸ About. A screenshot, which is worth more than a description. And if the problem involves a watch, which manufacturer and when the last session arrived.
3. A watch that stopped syncing
Before writing: open Profile ▸ Settings ▸ Watches and sensors. An authorization that has expired says so there, and reconnecting takes one tap. Sessions recorded by a third-party app on a manufacturer's account are not shared with us by every manufacturer, which is the most common reason a workout never arrives.
If the screen shows the watch as connected and a session is still missing, write to us with its date and the sport — we can see what the manufacturer sent and what we did with it.
4. Deletion, privacy and billing
Deleting your account, erasing your health measurements, disconnecting a watch, or deleting what one manufacturer sent: each is described on Deleting your data, and none of them requires the app.
Access, correction, portability, objection and withdrawal of consent are exercised at the address above; the privacy policy sets out the grounds, the processors and the authorities you may complain to.
Billing is Apple's. A subscription bought in the app is charged by the App Store, so it is cancelled and refunded there — Settings ▸ your name ▸ Subscriptions on your iPhone, or reportaproblem.apple.com for a refund. We cannot cancel or refund it for you, and we are not told the details of your payment. What we can do is check that your subscription is recognised by the app; write to us if it is not.
5. Who you are writing to
KARDIOO is published by AMINE ANSEUR CONSULTING, a French company registered in Pontoise. The full legal notice is on Mentions légales, and the terms of use are here.