Fill Timer (com.gelocode.filltimer) on Google Play
Self-adjusting the timer to count regular intervals. Allows you to automatically determine when the countdown for a known number of units of reference. Be repeatedly manually hold repeat, then start the timer.When you first start:- Set the number of items counted. - Set the number of intervals of reference. At short intervals increase the number of intervals increases accuracy. - Press the START button on each repetition of events counted. After a fixed number of intervals timer starts, automatically displaying the start and end frame, the remaining time and the remaining number of units.When you turn off the program, all settings are saved when restarting the countdown continues.