Broken Screen is a prank / simulated app used only for fun, it simulates the broken screen effect to play with your friends.
It doesn't damage your phone. Broken Screen Prank is a classic funny application used to prank your friends. When you touch your phone screen, the app simulates cracked screen and loud cracking sounds on your phone.
It looks like you use your finger to break and break your phone. The broken effect is so realistic that all your friends will believe that your phone is broken and afraid.