Pranker is a joke app that simulates a damaged phone in multiple ways. The following effects are supported: -Flickering screen -Noisy screen -Moving black lines -etc.. Fool your friends and family and have fun with it! The prank can be started immediately, when someone touches the screen or after a configurable delay time. When the configurable delay time startup is chosen, the user (pranked one) can still use the phone until the prank starts! You can hide the ad and lock the back button via the MENU button. Use MENU-Options to configure your prank.