Interval Timer

Take complete control of your workouts with Interval Timer — a fast, clean, and 100% ad-free workout timer built for all your interval training needs. Free, with zero ads, subscriptions, or tracking. Whether timing Tabata sets, HIIT cardio, boxing rounds, circuit training, or EMOM / WOD routines, Interval Timer delivers crystal-clear visual and audio cues without unnecessary clutter. KEY FEATURES: ⏱️ Instant Workouts & Full Customization • Built-in workouts for Tabata, HIIT (30/15), Circuit training (45/15), Boxing rounds (3m/1m), and EMOM. • Create, customize, and reorder your own workouts with drag-and-drop ease. • Configure Prepare, Work, and Rest durations down to the second. • Set total rounds from 1 to 99 with smooth, intuitive wheel pickers. 🔔 Distinct Audio & Haptic Alerts • Clear countdown sound beeps signal interval transitions so you never have to stare at your screen. • Tactical vibration pulses let you feel each transition even with loud music or in noisy gym environments. • Separate toggles for sounds and vibrations in Settings. 📱 Seamless Lock Screen & Background Play • Runs reliably in the background using an Android foreground service. • Full lock screen notification controls: pause, resume, and check remaining set time without unlocking your phone. 🎨 High-Visibility, Color-Coded Interface • Immediate color-coded screen changes reflect your current phase (Indigo for Prepare, Emerald for Work, Amber for Rest). • Large, bold countdown numbers readable from across the room. 🛡️ 100% Free, Offline & Privacy First • No ads, no in-app purchases, no subscriptions. • No account registration or sign-in required. • No third-party data tracking or personal data collection. • All your routines and workouts stay exclusively on your local device. PERFECT FOR: • HIIT & Tabata interval training • Circuit training & bootcamp workouts • Boxing round timer & martial arts sparring • CrossFit, EMOM & WOD conditioning • Strength training, gym sets & rest timers • Running, sprint intervals & cardio conditioning • Stretching, mobility routines & yoga Keep your focus where it belongs — on your movement and your workout. Download Interval Timer today!