Buzzer, Stopwatch & Timer

Buzzer - Stopwatch - Timer. The buzzer is a three-in-one app, with a buzzer, stopwatch, and timer facility. Buzzer. Buzzer is an app that lets you play buzzer during quiz shows or other such events. Here the user has nine different buzzer sound available to choose from. Stopwatch. Start the stopwatch app, create lap and find the time difference between two different laps.