3... 2... 1... Scream app for iPhone and iPad

With this full version of 3-2-1 Scream, you can replace the default fright photo with ANY IMAGE from your photo gallery. And there are no ads.

Freak out your friends and terrify your loved ones.

3-2-1 Scream counts down from 10 -- with a pulsing heartbeat sound for each number -- until the scary image flashes, complete with screaming and vibration.

But 3-2-1 Scream is really scary because the fright photo -- default image or user-selected -- can pop up at any time when the countdown hits five seconds. So the surprise is twice as shocking when it comes moments before it is expected.

Warning: Tell your friends theyd better not drop your phone when they shriek in terror.