SpeedLocker

SpeedLocker protects you while driving by locking the device (via normal Screen Lock) if moving at 5 miles per hour or faster. By locking the device, the driver is protected from dangerous distractions like texting or social media. Phone calls can still be received. This app has to be authorized to be able to lock the device, and will ask for this authorization at launch if needed. The app requires GPS hardware on your device for high accuracy speed detection and Google Play Services must be installed. If you wish to uninstall the app, you must unauthorized it first in Settings > Security > Device Administrators.