This app is intended for entertainment purposes only and does not provide actual security functionality. It is simply an app that allows you to pull a prank on your friends.
Trick your friends by giving your iPhone the illusion of having 3 levels of security. Of course, this is merely a prank and does not actually lock your phone. The three pranks are:
1) A fingerprint scanner
2) A retina scanner
3) A vocal analyzer
Here's the trick though. If you tap the bottom left corner of the screen, it will toggle between a screen that says "Access Granted" and a screen that says "Access Denied". These screens don't actually allow or deny access, but they make for a funny trick!