App to Silence all for a set period of time

Your phone should be able to do that without using any apps. From mine you go to settings/do not disturb/and select an amount of time. You can also set up rules to turn off sounds from say, 8am-5pm School Day or Work Day, for example.
 

Forum statistics

Threads
954,246
Messages
6,961,066
Members
3,162,964
Latest member
Davidmongee