This app will convert your phone to a Dash Cam recorder that can record for a long time without needing of keeping your screen on or using much power ! Yes that's right you just start the app and minimize it then you can use your map to navigate while driving and the Dash Cam app will record everything while you are driving. The app will show your speed and GPS latitude , longitude and altitude on the screen while you are driving. The app doesn't need much power because it works on the background. Try it you won't regret i promise ..