Trailmaker privacy policy

Trailmaker does not collect, sell or share personal data. Colormetric Labs runs no server for the app. There is no account, no analytics, no crash reporter, no advertising and no tracking. Your routes are stored on your iPhone. On the App Store, the app's privacy label is "Data Not Collected".

Nothing is sent to Colormetric Labs. Routes, recorded tracks, imported map and routing packs, and settings are stored in the app's private storage on your device and are removed when you delete the app.

Your routes leave the device only when you export or share a file, or turn on iCloud GPX Backup.

The app connects to these services, and to nothing else:

Apple Maps. The map, Smart Routing directions and place search are Apple services. To give you directions, the points being routed go to Apple. To search, the text you type goes to Apple. Apple's privacy policy covers what Apple does with them.

Terrain data for elevation. To work out ascent, descent and the elevation profile, the app downloads terrain tiles from the AWS Terrain Tiles open-data set (elevation-tiles-prod.s3.amazonaws.com), hosted by Amazon. The request is anonymous and contains only tile numbers, never your route. A tile covers an area of roughly 10 km, so a request shows Amazon the rough area you are planning in. Tiles are kept on your iPhone, so each area is downloaded once. To stop these requests, turn off "Calculate elevation" in Settings.

App Store purchases. Apple handles payment. We never see your payment details, name or Apple Account. The app checks your purchase with Apple's signed records, on the device.

iCloud GPX Backup, only if you turn it on. GPX copies of your routes are saved to your own iCloud Drive. Colormetric Labs cannot see them. Turning backup off deletes nothing.

The app asks for your location only when you tap the locate button, start a route from where you are, or record a track. It uses your location in the background only while a recording is running, so a recording keeps going with the screen locked. It stops when you stop recording.

Your location is processed on your iPhone and saved only in your routes and recordings. It never leaves the device, except when you route from your location with Smart Routing (Apple receives the points) or when you export, share or back up a route. You can withdraw permission at any time in the iPhone's Settings.

The app contains no advertising, analytics, crash-reporting or tracking code. It never asks to track you across other apps, because it does not track you at all.

Delete a route and it is gone from your iPhone. Delete the app and everything it stored goes with it. Copies in your iCloud Drive stay until you delete them. We hold no record of you, so there is nothing for us to send you or delete.

Trailmaker is not directed at children. It collects no personal data from anyone, including children. It has no advertising, no social features and no way to contact other people. Purchases go through Apple, so Ask to Buy and Screen Time controls apply.

Questions about privacy: support@colormetriclabs.com. If this policy changes, the new version and its date appear on this page. See also the Trailmaker page.