vibrator - multi functions

This is a multi-functional app about vibration.

【features】

● You can use the vibration as an alarm timer. Under circumstances that must not put out the sound, this app will be useful.

● This app can vibrate in background. So vibration will be continued while using other apps.

【restrictions】

● This app does not work on no vibration function terminal.

● The strength of vibration is dependent on the terminal. Not dependent on this app. This app will not be able to control strength of the vibration.