TimeLeft - TimeLeft is a versatile desktop utility - it can be used as a countdown clock, reminder, clock...
Timetaco - Create your own countdowns, as easy as 3, 2, 1
Hourglass - Hourglass is the most advanced simple countdown timer for Windows.
Coountdown - 3 2 1 ! Create day counter on menu bar macOS. 🚀
wnr - Better than pomodoro, this timer app balances work and rest.
Padbury Clock Screensaver - Minimal screensaver for Mac