Gross out your friends with “Crack Attack”, the latest app that allows you to prank your friends! With realistic bone cracking and popping sounds, make anyone around you uncomfortable as you adjust your neck or crack your knuckles.

With an easy to control interface and multiple sounds, you are sure to get hours of enjoyment and laughs with your friends. Crack Attack is a must for anyone with a sense of humor.

http://appshopper.com/entertainment/crack-attack