If your iPhone is set on Silent Mode while the Tasbih is on 'Ringer Mode', your iPhone will not vibrate unless you activate 'Vibrate on Ring' and 'Vibrate on Silent' in your iPhone settings.

To enable the vibrate settings in iOS, go to [Settings] > [Sounds & Haptics] > [Toggle on Vibrate].

To enable the vibrate settings in Android, go to [Settings] > [Sounds and Vibration] > [Increase the vibration intensity].

Should you require any assistance, kindly send us an email at support@muslimpro.com and we will be glad to assist you.