HIIT Interval Buddy - Let Interval Buddy help you with your high intensity interval training - a popular method of high-impact cardio fitness training that reduces time spent in the gym and makes cardio training less of a bore.
Hourglass - Hourglass is the most advanced simple countdown timer for Windows.
Norwegian 4x4 Protocol - Download the Norwegian 4x4 App for scientifically-proven HIIT workouts. Transform your fitness with structured interval training. Available on iOS and Android.
TIMEBOX - An advanced timer for professional meeting facilitators
Love HIIT - Free exercise timer, share your workouts
Online Alarm Kur - Free online alarm clock, set alarm easily on your computer using the internet alarm clock without downloading any software, wake up in time with the loud online alarm clock.