The Back-Time Calculator application allows you to enter time values to determine a back-time. The calculator starts at 60:00. You enter your time and press the enter button. Your time is subtracted from the current back-time value. When you want to start over, press the AC button to clear all entered values. You can also swipe individual times in the list to delete individual time entries.
Added ability to mute the clicking sound made by the calculator buttons
Ratings and Reviews
Works well - very helpful.
As a radio host, I need to time all segments of the hour down to the second. I find Back Timer very helpful.
With Family Sharing set up, up to six family members can use this app.