USD 1 right now.
Silence Premium Do Not Disturb - Android Apps on Google Play
Source
Silence Premium Do Not Disturb - Android Apps on Google Play
Source
If you forget to mute your phone and calls rings or notifications chime during important meetings or wakes you up at night, then this Do Not Disturb app (DND) is for you. Enable Calendar and Night mode, and forget about having to play with volume control to silence your phone.
Several features set this app apart from others in the category. This application was written with security in mind. As such, it requires just a few permissions to read user's contacts, calendar and to send and receive SMS. Most other apps require network permissions, and some need access to SD storage, which allows them to transfer any of the personal data from the phone unnoticed. This app can't do that, so you can rest assured that your personal data is safe.