Tap and hold your finger on the lie detector simulator machine. After detection, Lie detector will test lies,
pretends to scan the finger print and determines lie, maybe or true.
Use Lie Detector Simulator Machine - Prank Finger Print - Prank App to Prank your friends your friends to see if they are lying or telling the truth.
Lie or truth is not determined by your finger print. This app is a prank app - does not really detect if a person lies.