Nothing is collected.
Tank Switch has no account and no server. Your flights and settings stay on your iPhone and Apple Watch.
Privacy policy, updated 21 October 2026
What stays on your devices.
- Flights and settings. Stored on your iPhone and sent to your paired Apple Watch over Apple's own phone-to-watch connection.
- Location. Used on the iPhone to detect takeoff from your ground speed, and to know when it is night for Auto night mode. A rough position (to about 6 miles) is saved with your settings. It is never sent anywhere else.
- Alarms and notifications. Scheduled on your devices by the system.
Deleting the app removes all of it.
The short list.
- No network requests. The app does not connect to the internet.
- No analytics, advertising or third-party SDKs.
- No tracking.
- No iCloud.
Children.
The app collects nothing from anyone, children included.
If this changes.
This page will say so and the date at the top will change.
Questions
A planning aid. Tank Switch estimates fuel from the numbers you enter. It does not read your aircraft's fuel system. Use your aircraft's fuel gauges and totalizer.