Fast Finger Lie Detector Prank

Fast Lie Detector is the most powerful lie detector for android. You can use this fingerprint lie detector to scan the fingerprint and this app will show you whether it's a lie or the truth.

Use this free lie detector to prank your friends and get the real answer from their mind. No one can ever lie you again.

How to use:
-Put a thumb on the fingerprint scanning area
-The app will start scanning your thumb
-Wait for the result

Features:
-Stunning HD Graphic to simulate real lie detector
-No need additional equipment for scanning
-Sound alert when scanning
-Vibrate while detecting and scanning to let the users feel the real device
-Beautiful effects