Beep every half an hour -
It is similar to a striking clock.
This app is similar to a striking clock.
Beep every half an hour.
And special beep at 3, 6, 9, 12 o'clock.
If quit, press stop service.
What's New in the Latest Version 2.3
Last updated on Oct 31, 2020 Support Android 10.Debug silent mode.
