Lie Detector Simulator simulates a fake finger print scanner to give a fake result. The fake lie detector result will be Truth, Maybe or Lie. Ask your friend to tap and hold their finger on the lie detector scanner and think of something. The lie detector app will simulate and make your friends believe that it gives result based on the fingerprint. Lie detector is a free prank app, it will not actually detect if a person is lying. DISCLAMIER: Truth or false is not determined by your finger print. This app is a prank app - does not really detect if a person is lying or not.