Quiet(SMS call blocker)

Quiet is an SMS call blocker app. Unlike other SMS call blocker apps, it is designed for daily use in those do-not-disturb circumstances:
* Morning break.
* Start working on tasks that needs full concentration.
* Reading.
* Important meetings.
* Watching a movie.

How it works?
When Quiet is on, incoming calls will be rejected via SMS for the first time. Quiet will pass the call through if he call twice.
Easy to use
Quiet is very easy to use.
* Drag the handle, to set a timeout for Quiet. That's all you need to do.
* You don't even need to turn off Quiet, it will stop automatically when the timeout reaches.