This application is very useful for bike riders..
1. Speed limit is setted to 60 km/hr
2. Just open this app move to Tracker page to view your current speed
3. Now just lock your screen and put your smartphone in your pocket
4. When you cross the speed limit it will automatically indicate you by means of vibration.
This app will runs even when your screen is locked
No need of internet connection , just turn your location On