Keep a check on the speed limit using Speed Monitor. While driving, you don't have to stare at your speedometer to check if you're violating the speed limit. Speed Monitor does that for you. Set a desired speed limit in the app and the app will alert you if you cross the speed limit.Just connect your ODB Dongle to your car through the data port. Pair the OBD Dongle with your phone having the application and you're good to go!
Get it on Google Play