Useful app খুবই উপকারি অ্যাপ App for night time & battery saving of Android
this app will be the most useful app for your android smart phone and it will help you to keep your phone silent while you are sleeping even it will help you to save battery by turning off wi-fi and bluetooth.
very important post. i like it . android smart phone very helpful.
very good subject.it is very popular app in android phone users......