Scare your friend.
This application is updated version of Screamer
(https://play.google.com/store/apps/details?id=newscreams.com)
In this version added more pictures & scream sounds (Watch video).
Also added timer.
You can run your scream effect by screen touch or timer.
For better effect make your phone volume 100%.

IMPORTANT: This application Tested only on Samsung Galaxy S5 (Android 5.0, Screen size 5.1)