This is a most popular, cute screen prank software. A crack appears in the screen (of course this is just painted on.), And issued a realistic sound when using it. Start this application before the phone will be loan to somebody.The time to your set up which called delay-seconds, and I guarantee he / she will be dreadfully shocked. Looking at his / her nervous face,you will certainly be happy too bloom.
The method of operation is very simple, and try to find it.