Fingerprint Lock screen- prank

Fingerprint lockscreen is one of the smartest lockscreen app for android. You can actually use this app to avoid unauthorized access to your device. This app is a very realistic looking fingerprint scanner and you can set this as your default lockscreen. How it works As you know your device screen can’t scan fingerprints but with a nice trick, everyone will believe this as a real fingerprint scanner. This is how to use this app - Place your thumb on the scanner and the scanner will go up and down - At some point you will notice a slight change of the brightness of the screen. Quickly lift your finger and it will unlock - If you want to quickly unlock the screen, just quickly tap on the scanner and it will unlock.