wnr - Better than pomodoro, this timer app balances work and rest.
CountDown Kings Free Countdown Timer - CountDown Kings Free Countdown Timer is a free countdown timer for Mac OS X and Windows operating systems.
Smart Sloth - Smart Sloth uses the concept of timeboxing, which is to allocate a set amount of time to each task, therefore, creating a deadline which can increase the productivity of the user.
Desktop Countdown Timer - Desktop Countdown Timer is a free to use countdown timer for the desktop environment of the Windows.
ChirpyTime - ChirpyTime: Timer / Alarm Clock / Clock app for iPhone / iPod Touch
Free Windows Countdown Clock - Free Windows Countdown Clock is a free Windows countdown clock and date counter for the Windows operating systems.