Lie Detector Simulator is a free prank app developed by RedStaff Apps for Android devices. As the name suggests, it simulates a lie detection test that makes it seem like your device can detect lies based on a fingerprint scan. Keep in mind that this is only a game and not an actual lie detector.

The app features a realistic-looking scanner simulation, force feedback vibration, and the ability to play pranks by setting custom responses. After conducting a fake fingerprint scan, the game will randomly say either true or false. It's a fun way to play pranks on your friends and family, but it's important to remember that this app is for entertainment purposes only and not to be used in a court of law. Overall, Lie Detector Simulator is a great app for anyone looking for a fun way to prank their friends and family.