Lie Detector - FREE !!! is a prank app available on the iPhone platform. The app claims to analyze your fingerprint and determine if you are telling the truth or not based on an affirmation you say. However, the results are random, making it a fun and entertaining way to prank and laugh with your friends.

The app has received mixed reviews from users. Some find it to be a stupid app but still funny, while others have enjoyed using it during social gatherings, especially on drinking nights out. It adds an element of amusement by allowing users to say silly truths and have a good laugh together.

It is important to note that Lie Detector - Truth Detector Fake Test Prank App is not a real truth detector and is solely intended for entertainment purposes. It is a free app developed by GreenTomatoMedia Limited and falls under the lifestyle category.