This is the best free Lie Detector Photo Scanner prank app available because you control the results (secretly)! and it talks too! DOWNLOAD FREE HERE: https://itunes.apple.com/gb/app/lie-detector-photo-scanner/id1075467616?mt=8 A great free photo scanner app where you can prank your family and friends! From the makers of Naughty or Nice Photo Scanner, Hot O Meter Free & Voicemail Santa. How it works: - If someone has just told you something and you want to have fun with them and prank them that they are telling the truth or a lie then use this free app! - Choose an existing photo of them from your album or take a new photo to test. - Press start and Lie Detector Photo Scanner scans over your photo then speaks a random result either true or lie. - Press the 'spanner' button to give you control and choose who's telling the truth and who's telling a lie.