zonas privacy policy

zonas is built around a simple idea: your heart-rate data should stay on your device.

Last updated: April 28, 2026

The short version: I do not collect, store, sell, or share your heart-rate or workout data on my own servers.

What Zonas does not collect

Zonas does not collect personal information such as your name, email address, phone number, or location.

Zonas also does not use:

  • analytics services
  • ad networks
  • tracking tools
  • crash reporting services
  • cloud storage for your health or workout data

What stays on your device

Zonas processes data locally on your device, including:

  • heart-rate samples received from your Bluetooth monitor or Apple Watch
  • heart-rate zone calculations
  • workout sessions and workout duration
  • weekly cardio goal progress
  • app preferences and settings
  • subscription status

This data stays on your device and within Apple Health. I do not have access to it.

Bluetooth heart-rate monitors

Zonas uses Bluetooth Low Energy to connect to external heart-rate monitors such as chest straps and arm bands. The connection is direct between your device and the monitor.

Heart-rate data from that connection is not sent to me or to any external server. Device information such as the name of your heart-rate monitor is used only to show the device in the app.

Apple Health and Apple Watch

Zonas reads and writes data through Apple HealthKit with your permission.

Zonas may read:

  • heart rate
  • resting heart rate
  • active energy burned
  • date of birth, for heart-rate zone calculations
  • workout history

Zonas may write:

  • heart-rate samples recorded during workouts
  • completed workout sessions

This data is stored in Apple Health on your device and managed by Apple’s privacy framework. I do not receive it. Apple’s privacy policy applies to data stored in Apple Health: apple.com/legal/privacy.

If you use the Apple Watch companion app, workout sessions can run on the Watch and mirror to your iPhone through Apple’s systems. That data stays within Apple Health on your devices.

Payments

Payments, subscriptions, renewals, and refunds are handled by Apple through the App Store. I do not receive or store your payment details. Apple’s privacy policy applies to those transactions.

Data retention and deletion

Your data remains in Apple Health and in the app’s local storage until you delete it or remove the app.

If you uninstall Zonas, local app preferences may be deleted from your device. Workout data saved to Apple Health remains in Apple Health until you delete it there.

I cannot recover your data because I do not have access to it.

Your control

Because I do not keep a server-side copy of your data:

  • I cannot view your workouts or heart-rate history
  • I cannot edit or delete your data for you
  • I cannot recover deleted data for you

You remain in control of the data stored by the app and by Apple Health on your device.

Children’s privacy

Zonas does not knowingly collect personal information from children under 13.

Changes to this policy

I may update this Privacy Policy from time to time. If I do, I will update the date at the top of this page.

Contact

If you have questions about this Privacy Policy, email privacy@nschumacher.dev.

Effective date: April 28, 2026