Spoken pacenotes
Grades 1 to 6, "tightens", "at junction", distances to the next corner. Called on time, tuned to your speed and braking distance.
Your co-driver, offline
TrueTrail reads your route aloud as rally pacenotes, finds the twistiest road and times your laps on track. Everything runs on your phone: no account, no tracking, no signal needed.
Pacenotes · lap times · offline maps

Features
Grades 1 to 6, "tightens", "at junction", distances to the next corner. Called on time, tuned to your speed and braking distance.
Choose how much of a detour you accept and TrueTrail finds the road with the most corners. It tells you how many extra minutes it costs.
Lap times, sectors and live delta, with your phone's GPS or a Bluetooth receiver. 81 circuits in the Benelux, Germany and France are ready to go.
Download your region's map once. After that, routing, pacenotes, search and the map all work without a signal.
Speed bumps, chicanes, narrows, bridges and tunnels from OpenStreetMap, called with the corner they belong to.
Share a route, a time or a session as a single file. You see exactly what goes in first, and the recipient can drive against it right away.
Screenshots
Real screens from the app. Swipe for more.











Privacy
Your drives, your times and your location stay on your phone. TrueTrail has no server that could receive them.
No email address, no password, no profile on a server. Open it and drive.
No ads, no analytics, no crash reports phoning home. This website doesn't track you either.
The network is only used when you download a map or share something yourself. On the road, the app talks to no one.
Two environments
Rally
Circuit
Timing and driving against a time are intended only for circuits, closed grounds and authorised events. On public roads, follow the traffic rules and the laws of the country you are driving in. That is why rally timing is off by default.
FAQ
Only to download a map. After that everything works offline: routing, search, pacenotes and the map.
All twelve Dutch provinces for now, based on OpenStreetMap. Circuits work abroad without a map. More countries will follow. See all maps.
Dutch, English and French. The app follows your phone's language, or you can choose one yourself. Distances in kilometres or miles.
An English and a French co-driver voice are built in. You can also import your own voice pack.
An Android phone with Android 8.0 or newer and GPS. In circuit mode you can connect a Bluetooth GPS receiver for more fixes per second.
TrueTrail is in development for Android. iOS will follow later.
Coming soon
TrueTrail is coming to Android first.