Privacy Policy

Last updated: April 2026

WristNav is a Wear OS application for offline map navigation and GPS activity tracking. This privacy policy explains what data the app collects, how it is used, and your rights.

Data We Collect

WristNav may collect and process the following data on your device:

• Location data — GPS coordinates used for map display and route recording
• Health data — Heart rate and step count from your watch's sensors during activity recording
• Activity data — Distance, pace, elevation, and duration of recorded activities
• GPX files — Route files you import or that are generated from your recordings

How We Use Your Data

All data collected by WristNav is processed locally on your device. We do not transmit your personal data to any external servers operated by us.

• Location data is used solely to display your position on the map and record your route
• Health data is used solely to display live stats and save to GPX files
• GPX files are stored on your device and only shared when you explicitly choose to do so

Strava Integration

WristNav offers optional integration with Strava. If you choose to connect your Strava account:

• You will be redirected to Strava's authorisation page
• WristNav will request permission to upload activities on your behalf
• Your Strava credentials are never stored by WristNav — only the access token provided by Strava
• You can revoke access at any time via your Strava account settings

Strava's own privacy policy applies to data held by Strava. See strava.com/legal/privacy.

Data Sharing

WristNav does not sell, rent, or share your personal data with third parties, except:

• When you explicitly upload an activity to Strava
• When you explicitly share a GPX file using your device's share functionality

Data Storage

All data is stored locally on your device. GPX recordings are saved to your device's Downloads folder. You can delete any data at any time by removing files from your device or uninstalling the app.

Permissions

WristNav requests the following permissions:

• Location — for GPS tracking and map display
• Body Sensors — for heart rate monitoring during activities
• Activity Recognition — for step counting during activities
• Storage — to save and read GPX files

Analytics

WristNav uses Firebase Analytics to collect anonymous usage data. This helps us understand how the app is used and improve the experience. The following data may be collected:

• Screens and features visited within the app
• Device model, manufacturer and Android version
• App version and build number
• Country and language settings
• Session duration and frequency of use

No GPS coordinates, health data, activity data or GPX files are ever sent to Firebase. All analytics data is anonymous and not linked to any personal identity. Analytics collection can be disabled by uninstalling the app. If you have concerns about analytics data, please contact us via our GitHub repository. Firebase's own privacy policy applies. See firebase.google.com/support/privacy.

Crash Reporting

WristNav uses Sentry to automatically collect crash reports. When the app crashes or encounters an error, the following data may be sent to Sentry's servers:

• Stack trace and error type
• Device model, manufacturer and Android version
• App version and build number
• Approximate geographic location (city/country level, derived from IP address)
• Device hardware information (memory, storage, screen size)
• A randomly generated anonymous user ID (not linked to any personal identity)
• Battery level and charging state at time of crash

No GPS coordinates, health data, activity data or GPX files are ever sent to Sentry. Crash reports are used solely to identify and fix bugs. Sentry's own privacy policy applies to data processed by Sentry. See sentry.io/privacy.

Contact

If you have any questions about this privacy policy, please open an issue on our GitHub repository.