7. Scary Prank App by TechRoid Available on Android, this app uses terrifying voices and images to scare your friends and family. It allows you to make them believe you can communicate with ghosts ...

Scare Your Friends One of the more common prank apps you will find for smartphones are apps which do something when one of your friends pick up your phone. Some set off alarms, buzz or otherwise.

Download the Scary Prank app for your iPhone from the App Store. It is a free app. Open it up and present the memory challenge to your mark.

You may actually want to pull off an April Fools' Day prank with this app.

10. Scary Prank If you wished you had a camera every time your friend had a hilarious reaction to something, then Scary Prank app is ideal for you. This app allows you to prank your friend by ...