Crack My Screen - Prank Fun - Always wanted to substitute the other? Play it so that his heart became? With this app you will be able to scare him seriously, all you need is launch the app and your screen suddenly crack apart. Of course he will be safe, but it looks quite realistic as if you really took all the cracks. Also in the Appendix there are several types of broken screen, so you can choose the one that more you like.