1stGear+ is the must have app for all drivers. Putting the device next to the front glass you can see the reflection on it as a hologram. The same has newest top cars.
Once your track is over, automatically saves the details to show them on the map or even share it with your friends.
Runs in background and minimises battery use and continued use of GPS running in the background can dramatically decrease battery life.
It is recommended to quit the app from memory if you dont need it.