VibroJoy Vibrator

VibroJoy Vibrator can vibrate your phone with any vibration interval by a simple tap on the screen. Top right corner below the title gives endless vibration mode. Tapping the top of the screen switches vibration off and back again.
Try to tap the screen at different positions to see what you like best.

You can joke and tickle your friends with it, massage your back, or whatever you want.

The strength of the vibration can not be controlled by the application, but it is configurable on some phones, for example on Samsung. Look in the settings menu.

Tablets might not have a vibration motor at all.