This entertainment app simulates a lie detector using fingerprint scanning. Prank friends and family by making them believe you can detect if they are lying. It offers preset truth or lie answers or random results for fun.
2.3
August 29, 2026
Bug fixes and enhancements
Try free 3 days. Then full Pro access.
Lie Detector & Polygraph Fingerprint Scanner is a fun game that simulates a fingerprint scanner to detect lies. It's designed for entertainment and pranking friends.
The app simulates scanning a fingerprint. You can set preset answers (truth or lie) or let the app generate random results to prank your friends.
No, this application is purely a prank and a fun game. It is not a real life lie detector (polygraph) nor a real fingerprint scanner.
Lie Detector & Polygraph Fingerprint Scanner is available for iPhone, iPad, and iPod.
The app has an age rating of 4+, making it suitable for a wide range of users.
The app was last updated on September 29, 2016, with version 1.1.
No, this application does not contain advertisements.
Users appreciate the high-quality pictures, superb animations, and realistic sounds that make this app a great prank.
