Optical Illusion Prank - Scare your friends is a free iPhone app developed by Digital Bananas LLC. This app allows users to play a scary prank on their friends by distracting them with cool optical illusions and then surprising them with a terrifying face that bursts onto the screen.

The app features a collection of illusions that are not fake, making it easier to fool the victim. Some of these illusions have psychedelic and freaky effects, ensuring that the victim never sees the practical joke coming.

The prank is set on a timer. Users can choose from several illusions that claim to have a trippy effect on the mind. Once an illusion is selected, a timer starts, and within a few seconds, a spooky monster bursts onto the screen with a scream of horror. Users have the option to choose from several creepy faces to frighten their friends, and they can also set the timer according to their preference.

Forget other hoax apps with lame tricks and jokes, Optical Illusion Prank - Scare your friends is the best way to put the fear of God into unsuspecting victims. It offers a funny and fun way to terrorize friends with a little humor.