Scare Your Friends - SHOCK! is a free Android app developed by PakSoftwares. It falls under the category of games and subcategory of action. As the name suggests, this app is designed to scare your friends by displaying a terrifying picture with a horrifying sound in the background.

To play a trick on your friend, you need to follow three simple steps. First, choose a horrifying picture. Second, choose a terrifying sound. Finally, set the time after which you want to scare your friend. Once you've set everything up, give your phone to your friend to play with. After the set time, the horrifying picture with the terrifying sound will startle your friend.

The app is easy to use and provides a good scare to your friends. It is a fun way to prank your friends and have a good laugh. However, it is important to use the app responsibly and not scare anyone who may have a heart condition or could be traumatized by such pranks.