Chrono 8Pool allows the 8 pool & BlackBall billiard referees to control the playing time while keeping their eyes on the table. A tap on the screen and the stopwatch will pause, a double tap will reset the stopwatch. At 30 seconds, the phone emits a long vibration, at 1 minute it emits 3 short vibrations and at 1:30 it emits 2 long vibrations. The time of the 3 alarms is configurable via the parameters screen. We have added a time extension option: just double tap on the extension to add 30 seco