Privacy Policy — Last updated: April 13, 2026
HeartZone Mirror does not collect, store, or share any personal data. All health and workout data remains exclusively on your devices.
HeartZone Mirror does not collect any of the following:
HeartZone Mirror uses Apple HealthKit to read heart rate data from your Apple Watch during workouts and to save completed workout summaries (duration, average/max heart rate, calories burned) to the Apple Health app on your iPhone.
This data is processed entirely on your device and is never transmitted to any external server. HeartZone Mirror does not access any HealthKit data beyond what is described above.
In accordance with Apple's HealthKit guidelines, health data is never used for advertising or shared with third parties.
HeartZone Mirror communicates between your iPhone and Apple Watch using Apple's WatchConnectivity framework. This communication is encrypted, peer-to-peer, and occurs exclusively between your paired devices.
User preferences (such as heart rate thresholds and age settings) are stored locally on your iPhone using standard iOS storage (UserDefaults). This data never leaves your device.
HeartZone Mirror does not integrate with any third-party analytics, advertising, or tracking services. There are no SDKs from external companies in the app.
HeartZone Mirror does not knowingly collect data from children under 13. The app does not collect any personal data from any user.
We may update this Privacy Policy from time to time. Any changes will be posted on this page with an updated revision date.
If you have questions about this Privacy Policy, please contact us at: