Workout Timer Custom Intervals

Running Interval Timer

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

Looking to take your fitness to the next level? Our Interval Trainer app is the ultimate tool for anyone who wants to build custom workouts, train along proven programs, and hit their fitness goals — all from one beautifully designed timer. Whether you're crushing HIIT, Tabata, CrossFit, EMOM, AMRAP, boxing rounds, circuit training, running intervals, cycling sprints, yoga flows, or a simple stopwatch session, Interval Trainer has you covered. KEY FEATURES • Fully customizable timers — set your own rounds, work, rest, and labels • 23 ready-to-go workout templates across 8 categories: Tabata, HIIT, Boxing, Running, CrossFit, Circuit, Stretching, and Cycling / Rowing • Difficulty ratings from Easy to Elite so you can pick the right session for the day • Segment-based timer with dedicated Warm-up, Prep, Work, Rest, and Cool-down phases — each with its own color and sound cues • 6 sport-inspired themes: Hyperlime, Midnight, Combat, Sunrise, Cyber, and Mono • Available in 11 languages: English, Spanish, French, German, Italian, Dutch, Portuguese (Brazil), Russian, Japanese, Simplified Chinese, and Hindi • Historical workout tracking to set new goals and stay consistent • Background music playback — keeps your playlist running while the timer guides you • Runs in the background with audible cues so you never miss a transition • Light, dark, and themed appearance options Whether you're a beginner picking your first 30/30 HIIT session or a seasoned athlete training a 12-round pro boxing block, Interval Trainer has everything you need to customize your workouts and track your progress. Download today and start taking your fitness to the next level! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.termsfeed.com/live/6125dabf-a638-49d7-b81e-118dfbb88572

  • 4.5
    out of 5
    137 Ratings

Major improvements and features added. Questions or feedback? Reach out at us at appoutliers@gmail.com!

The developer, Simon Jansen, 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

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

    Seller
    • Simon Jansen
    Size
    • 30.4 MB
    Category
    • Health & Fitness
    Compatibility
    Requires iOS 16.1 or later.
    • iPhone
      Requires iOS 16.1 or later.
    • Mac
      Requires macOS 13.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    • Apple Watch
      Requires watchOS 10.5 or later.
    Languages
    English and 10 more
    • English, Dutch, French, German, Hindi, Italian, Japanese, Portuguese, Russian, Simplified Chinese, Spanish
    Age Rating
    4+
    In-App Purchases
    Yes
    • Premium $19.99
    • Monthly subscription $1.99
    • Premium Yearly $9.99
    Copyright
    • © 2023 Simon Jansen