HIITKO - HIIT & Tabata Timer

Turn any workout into a guided interval session. HIIT Timer is a fast, focused interval timer for HIIT, Tabata, EMOM, circuit training, boxing and MMA rounds, and running intervals - with clear audio cues, vibration, and a full-screen display you can read from across the room.

Set your work and rest once, press start, and let the timer run the whole session. Bodyweight, kettlebells, a heavy bag or the track - it just works. No sign-up, no ads.

⏱️ READY-TO-GO PRESETS
• Tabata - 20s work / 10s rest × 8
• Beginner HIIT
• Norwegian 4×4 - classic VO2 max intervals
• EMOM Strength
• Boxing, Muay Thai & MMA rounds

🛠️ CUSTOM WORKOUT BUILDER
• Set warm-up, work, rest, rounds and cool-down
• Add longer recovery intervals
• Adjustable pre-workout countdown
• Exercise mode - name each move and the timer runs them in order
• Colour-code your workouts and save them

🔔 AUDIO & FEEDBACK
• Sound packs: classic beeps, boxing bell, soft pulse, spoken countdown
• Countdown beeps for the final seconds
• Vibration on every phase change
• An animated warm-up so you know when to start

📊 PROGRESS THAT KEEPS YOU COMING BACK
• Weekly goal ring - set a target and hit it
• Activity chart and a GitHub-style streak grid
• Current & best streak, completion rate, personal records
• Full workout history and shareable session cards
• Quick Start - repeat your last workout in one tap

🎨 MADE TO LOOK GOOD
• Light, dark and AMOLED pure-black themes
• Ten accent colour themes - the whole app, charts included, recolours to match
• Screen stays awake during a session
• Optional Do Not Disturb while training

⭐ PRO
• Daily workout reminder - your time, your days, skips days you've already trained
• Quick Start home-screen widget - start a session without opening the app
• Unlimited custom workouts
• Every sound pack and accent colour

💪 PERFECT FOR
HIIT and Tabata workouts • EMOM circuit training • boxing, kickboxing, Muay Thai and MMA rounds • CrossFit-style WODs • running and cycling intervals • stretching and mobility • home and gym sessions

Opens instantly. Starts your workout in two taps. Every setting has a sensible default, so you can train now and fine-tune later.

Download HIIT Timer - the interval timer that makes every round count.