Interval Timer - HIIT Tabata

IntervalFlow is a beautifully simple HIIT and interval timer — with no ads, ever.

No forced pop-ups. No banners. Just a fast, focused timer that gets out of your way so you can train.

WHY INTERVALFLOW

• No ads — never interrupt your workout with a pop-up or a banner.
• Color-coded countdown notification — your current phase, time left, and round stay on the lock screen and status bar. Glance mid-set without opening the app.
• Quick Settings tile — start your timer straight from the notification shade.
• Built for real training — big, clear countdowns with color-coded phases (work, rest, get ready, cooldown), sound, vibration, and optional voice cues.

READY TO GO

• Ready-made presets: Tabata, HIIT 40/20, EMOM, Boxing rounds, and multi-set circuits.
• Custom builder: set prepare, work, rest, rounds, sets, rest between sets, and cooldown — in seconds.
• Keeps running with the screen off, so the timer never stops mid-round.
• Automatic history — every session logs time, rounds, and estimated calories, with daily streaks and weekly counts.
• Material You — the app adapts to your wallpaper colors on Android 12+.

INTERVALFLOW PRO (optional, one-time purchase — no subscription)

• Named intervals — give each move its own name, and the voice coach calls it out loud.
• Workout chaining — link several workouts into one back-to-back session.
• Weekly summary and personal records — minutes per day, compared with last week, plus CSV export of your history.

The core timer stays free with no ads. Pro simply adds power features for people who want them, with a single purchase — never a subscription.

Perfect for HIIT, Tabata, cross-training, boxing, running intervals, stretching, EMOM, and circuit training — at the gym or at home.

Download IntervalFlow and start your first interval in seconds.