Smart Workout Timer: HIIT

Train without touching your phone between rounds. Smart Workout Timer is a fast interval timer for HIIT, Tabata, boxing, running, conditioning, circuits and home workouts. BUILD YOUR TIMER Set work, rest and rounds in seconds with large, easy-to-read controls. DAILY CHALLENGE Take on a fresh interval workout and build your daily training streak. QUICK PRESETS Jump straight into Tabata, HIIT or Sprint sessions. POWER PACK Optional rewarded ads unlock extra interval presets for 24 hours. Core timer features remain available without watching an ad. MADE FOR TRAINING - Large countdown timer - Clear Work and Rest phases - Sound and vibration cues - Pause, skip and back controls - Portrait and landscape workout timer - Dedicated iPad interface - Tabata, HIIT and Sprint presets - Daily Challenge and streak tracking - Custom work, rest and round settings - Remembers your previous timer setup No account required.