Chronometer All in 1 (com.u440.chronometer) on Google Play
Multifunction Chronometer All in one (v1.30)12 Modes Timer:Stopwatch.Countdown and Count up.Tachymeter, to compute a speed based on travel time.Cash clock, to bill your time business.Chess clock, with 4 submodes: no delay, simple delay, Fisher, Fisher after, Bornstein.Metronome, useful to play a musical instrument.Real time, to mark temporary events.Football/Soccer, with 3 submodes: association football, futsal, football 7.Egg timer, with 8 predefined recipes.Pomodoro, perfect for studying.Training, with 5 submodes: Fartlek, Tabata, Little method, 4x5, 30-30.Contractions, to take time between contractions.