There are several reasons why the Lie Detector Test: Prank App is a great app to download on your smartphone. This app is not only designed for entertainment purposes, but it also has many other useful functions that can be used in daily life.

The most useful function is the ability to prank your friends. With the ability to prank your friends, you can make them think that you can tell whether they are telling the truth or lying. This is done by asking them a question and then placing their finger on the screen of the device, so that the finger will be scanned and the result will show whether they are telling the truth or lying.

Another useful function is the ability to have a fake eye scanner. This can be done by placing the eye on the camera of the device and then the screen will give a notification about whether they are telling the truth or lying.

Another interesting function is the ability to have a fake fingerprint scanner.