ILabyrinth

iLabyrinth or known as Scary App is an iOS application made by Cyoshi Games.

After the splash screen, the app pretends to be a fake game so-called iLabyrinth and tells the player to beat all three levels. However, at the end of the third level, a picture of a zombie woman appears along with a scream. The app then takes a photo of the player's reaction.

The application even has its own website under the domain: "scaryapp.com"

Links
NOTE : The following app contains a screamer.
 * itunes.apple.com/app/scary-app-iphone-prank-ilabyrinth/id329272721
 * scaryapp.com
 * Teaser video: youtube.com/watch?v=aIvNDBy8jj0