Max HR Calculator — Privacy Policy

This policy applies to the Max Heart Rate Calculator mobile app (Max HR estimates and training zones), a standalone utility published by the same developer as the Delibra training app.

It does not replace the privacy policy for other Delibra products. If you use the main Delibra app, see the general policy linked at the end of this page.

The app does not require an account. Inputs such as age and your chosen formula are processed on your device to calculate and display estimated Max HR and related zones.

If you save results, history is stored locally on your device (for example with SwiftData). We do not operate in-app cloud sync or a user profile for this app.

We do not embed third-party advertising or analytics SDKs in this app.

If you use system features such as Share or copy, information may leave your device according to your choices and the platform you share to.

Apple and your device may collect limited diagnostics (for example crash reports) under Apple’s own policies when you use iOS.

On-device inputs are used only to calculate and display results inside the app.

If you email us for support, we receive the content you send (such as your message and email address) to respond to your request.

Data you keep in the app stays on your device unless you remove the app or clear app data, subject to how iOS manages local storage.

Support emails are retained only as long as needed to handle your request and for ordinary business or legal record-keeping.

App distribution and platform services are provided by Apple. Their processing is governed by Apple’s privacy policy and terms.

Depending on where you live, you may have rights to access, correct, or delete personal data we hold from support correspondence.

Contact: toyangqing@gmail.com

We may update this policy when the app or legal requirements change. The “Last updated” date at the top of this page will be revised accordingly.