TRounds

HIIT & Tabata Interval Timer

Free · Designed for iPad. Not verified for macOS.

Stop wasting time fumbling with a stopwatch. TRounds is the interval timer that serious athletes actually use — obsessively precise, brutally simple, and built to push you harder. Whether you're crushing Tabata, boxing rounds, or designing your own custom protocol, TRounds keeps you locked in. Big, color-coded countdowns. Haptic feedback on every phase change. Audio cues that fire the moment each interval switches — so your eyes stay on the work, not the screen. And when the session ends, the data tells the whole story. A 365-day heatmap shows every workout you've completed. Streak counters keep you honest. Completion rates reveal the truth. Weekly bar charts track your momentum. No cloud. No account. No excuses — everything lives on your device, private by default. --- 6 BATTLE-TESTED PRESETS --- Classic Tabata: 20s on / 10s off / 8 rounds. The original protocol that changed fitness forever. HIIT Beginner: 30s on / 30s off / 6 rounds. The perfect starting point. Fight Club: 45s on / 15s off / 10 rounds. Train like a fighter. Endurance Beast: 60s on / 20s off / 12 rounds. Build serious stamina. Quick Burn: 15s on / 5s off / 16 rounds. Fast and absolutely furious. Boxing: 3 min rounds / 1 min rest / 12 rounds. Classic gym-style training. --- BUILD YOUR OWN --- Create unlimited custom presets. Set work time (5-300s), rest time (5-60s), and rounds (1-30) exactly the way your training demands. Save them. Use them every session. --- SMART ANALYTICS --- - 365-day workout heatmap calendar - 12-week activity bar chart - Current streak and longest streak - Total sessions and total time trained - Completion rate tracking - Expandable recent session history --- BUILT DIFFERENT --- - Zero accounts. Zero cloud. Zero tracking. - All data stored on-device, permanently private. - Background audio so the timer keeps firing even when your screen locks. - Dark, distraction-free UI designed for the gym floor, not the boardroom. Download free. Train harder.

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Apple Watch app is here! TRounds now runs natively on your wrist. Set your intervals, start your round, and get haptic and audio cues right on Apple Watch. No iPhone needed during your workout. Full independence. Full intensity.

Version 1.1.0

The developer, Oleksii Vasylenko, 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
    • Oleksii Vasylenko
    Size
    • 20.9 MB
    Category
    • Health & Fitness
    Compatibility
    Requires iOS 15.1 or later.
    • iPhone
      Requires iOS 15.1 or later.
    • iPad
      Requires iPadOS 15.1 or later.
    • iPod touch
      Requires iOS 15.1 or later.
    • Mac
      Requires macOS 12.0 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
    Age Rating
    4+
    Copyright
    • © 2026 Oleksii Vasylenko
  • Developer Website
  • Privacy Policy