Lie Detector Fingerprint Scanner Touch Test Truth is a prank app designed for entertainment purposes on the iPhone. It should be noted that this app does not offer true lie detecting or scanning functionality.

The app is simple to use - just touch and hold the fingerprint to initiate the scan. Once the scan is complete, the app will randomly provide a response indicating whether you are telling the truth or lying.

Although the app is meant for fun, it is important to remember that it is not a genuine lie detector and should not be relied upon for any serious or important matters. It is purely a novelty app intended to provide amusement and entertainment.