Interval: HIIT & Tabata Timer

Gym, boxing & running rounds

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

Now on Apple Watch. Start a workout on your wrist and it syncs live with your iPhone — pause, skip or end on either one and the other follows. Interval is a fast, focused timer for HIIT, Tabata, EMOM, circuits, boxing rounds and any work/rest training you do. Set your work, rest and rounds — or start from a ready-made preset — and press start. A big, glanceable timer with color-coded phases and audio, voice and haptic cues keeps you on pace without staring at the screen. ON YOUR WRIST • A full Apple Watch app — start and run any of your workouts from your wrist • Live sync — start on iPhone and it opens on your Watch instantly, and the other way around • Pause, skip or end on either device and the other follows along • Haptic cues on every phase change, so you can train without looking BUILT FOR TRAINING • Work, rest and rounds you control, with round rests between sets • Tabata, HIIT and EMOM presets to start from • A clean preview of the whole workout before you begin • Gym circuits, boxing rounds, sprint intervals, stretching, physio sets — anything that runs on a clock STAY LOCKED IN • A large timer with color-coded WORK / REST phases • Two-tier progress: where you are in the round and in the whole workout • Audio beeps and an optional voice cue on every phase change and the last 3 seconds • Haptic feedback so you can train heads-down • Keeps running with the screen locked and in the background LOCK SCREEN & DYNAMIC ISLAND • A Live Activity shows the current phase and countdown on the Lock Screen and in the Dynamic Island YOURS, AND PRIVATE • No account, no sign-up • No tracking, no ads, no data collection — everything stays on your device SIMPLE PRICING Use Interval free for up to 15 workouts with every feature unlocked. A single one-time purchase — Interval Pro — removes the limit forever and unlocks accent themes. No subscription, ever. Questions or feedback? Email interval@klimakov.me

Ratings & Reviews

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• Interval now speaks German, French, Spanish and Portuguese — the whole app, including the spoken cues during a workout. • Durations, dates and counts now follow your region's conventions instead of American ones. • Interval asks how you're finding it after a few workouts. If it's earning its place, a rating helps more than you'd think.

Version 1.4.0

The developer, OLEG KLIMAKOV, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    • OLEG KLIMAKOV
    Size
    • 39.4 MB
    Category
    • Health & Fitness
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    • Apple Watch
      Requires watchOS 10.0 or later.
    Languages
    English and 4 more
    • English, French, German, Portuguese, Spanish
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    • © 2026 Oleg Klimakov
  • Developer Website
  • Privacy Policy

    • More by OLEG KLIMAKOV

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