Intervo vs RoundShift

Intervo is a fast, focused interval timer for HIIT, Tabata, circuit training, boxing rounds, EMOM and stretching. Build any work/rest interval, then let Intervo run the whole session for you — hands-free. EVERYTHING IS FREE All features are unlocked at no cost: save unlimited presets, voice countdown, sound cues and color themes. No subscriptions, no in-app purchases. FULLY CUSTOMIZABLE • Set prepare, work and rest durations • Choose rounds per set and number of sets • Add a longer rest between sets • One-tap Tabata preset (20s work / 10s rest x 8) CLEAR, BIG DISPLAY • Huge color-coded countdown ring you can read across the room • Each phase has its own color: prepare, work, rest, set break • Round and set progress at a glance • A preview of what comes next AUDIO & HAPTICS • Beeps on every phase change and the final 3-second countdown • Vibration feedback • Optional spoken voice countdown (English / Japanese) • Keeps the screen awake during a workout SAVE YOUR ROUTINES Save any configuration as a named preset and start it again with one tap. Tabata, HIIT, EMOM and more are included to get you going. PRIVATE & OFFLINE Intervo generates time entirely on your device. It needs no account, no sign-in and no internet connection. Nothing about your workouts ever leaves your phone. • English and Japanese • Light and dark themes with multiple accent colors • Designed for one-handed use Whether you do quick Tabata sets at home or full HIIT circuits at the gym, Intervo keeps you moving. Download it free and start your first interval in seconds. Intervo is free and supported by ads.

The interval timer you don't have to look at. RoundShift calls out every round — get ready, work, rest, half way, last round — so your eyes stay on the workout, not the screen. BUILT IN SECONDS • Tabata, HIIT, EMOM, strength presets — or design your own • Warm-up, custom intervals, unlimited rounds • Describe a workout in plain words and let RoundShift build it VOICE THAT COACHES • Real coach voices in 10 languages — or calm and hype styles • 89 exercise names spoken aloud in custom workouts • Works with the screen off, phone face down, music playing COACH MODE ON THE BIG SCREEN • AirPlay the countdown to any TV for group sessions and classes • Giant display the whole room can read APPLE WATCH + ADAPTIVE REST (PRO) • Full timer on your wrist with live heart rate • Rest that adapts: end rest early when your heart rate recovers, or extend it when you need more • Workouts logged to Apple Health with the right activity type SEE YOURSELF SHOW UP • Streaks, weekly minutes, and a calendar of every session • Home Screen widgets and quick actions NOT JUST FOR THE GYM • Box breathing and breathwork: 4-4-4-4 in seconds • Stretch and physio holds with spoken changeovers • Focus sprints for study and deep work • Anything that repeats: intervals are intervals RoundShift is free forever for running timers and built-in workouts. RoundShift Pro (one-time purchase, no subscription) unlocks saved workouts, stats, widgets, and Apple Watch.