But this app is actually a prank. Though if you want to use face detection and record it's truth or lie detection, you can do it by unlocking that feature using in-app purchase. That recording is completely private. NOTE - PLEASE READ THE INSTRUCTIONS ON FIRST START CAREFULLY AS THEY WON'T APPEAR AGAIN DUE TO THE NATURE OF PRANK. MAINLY THAT IS PRESSING LEFT OF START DETECTION BUTTON WILL GIVE TRUTH AND PRESSING RIGHT WILL GIVE LIE. DISCLAIMER- It has no relation to any real lie detector. Just meant to the extent of playing prank. Anything you do which is other than entertainment purpose will be at your own risk. We will not be liable for any loses or damages.