Tachys Support
Tachys Support
Contact
If you need help with Tachys, email hello@codeandlive.cz.
When reporting a measurement problem, please include your iPhone or Apple Watch model, OS version, Tachys version, the transport type, and a short description of the signal conditions. TestFlight builds can export a diagnostic JSON file from Settings; it contains precise location data, so review it before sharing.
Frequently Asked Questions
Why does Tachys initially show dashes?
Tachys waits for consistent GPS fixes before showing speed. Move to a place with a clearer view of the sky and keep Precise Location enabled.
What happens in a tunnel or during GPS loss?
Tachys dims the last known speed and shows how long the signal has been unavailable. It does not replace an unknown speed with a misleading zero.
Why does Tachys request background location?
Background location lets an active measurement and its Live Activity continue when the screen locks or another app is visible. Tachys does not send the location to a developer-operated server.
How do I delete trip data?
Delete an individual trip from History, or use Settings → Data → Delete all trips. Removing the app deletes its local container. Files you previously exported or shared must be deleted from their destination separately.
Why has a Watch trip not appeared on the iPhone yet?
Keep the Apple Watch paired and allow both devices time to reconnect. The Watch retains the trip locally until the iPhone confirms that it was imported.
How do I restore Tachys Pro?
Use Settings → Tachys Pro → Restore purchase while signed in with the Apple Account used for the purchase.
Safety
Do not interact with Tachys while driving. Mount the device securely, follow local laws, and treat Tachys as an informational GPS instrument rather than a certified vehicle or aviation instrument.
Privacy
Read the Tachys Privacy Policy.