Interval Run: Treadmill Coach

Interval running & HIIT timer

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

Exercise healthily, backed by science. Voice-coached treadmill intervals, GPS pace coach outdoors. Exercise healthily, backed by science. Doing intervals on your own usually means watching the clock more than the run. Every minute you have to speed up, change the incline and remember what comes next. Interval Run does that part for you, by voice. Put your earbuds in and just follow what you hear. [Treadmill mode] It tells you ahead of time when to change, to what speed and to what incline. It even allows for the few seconds your belt needs to catch up, so each change is called early and you hit the new pace right as the phase starts. [Outdoor mode] Outside, GPS tracks your distance and pace. Drift below your target and the coach says "a little faster", so there is no need to pull out your phone. Every run is saved with its route on a map. [13 proven interval programs] Both modes use the same programs, from walking to sprints. Pick the one that fits where you are today. - Beginner: Run-Walk, Power Walk, Easy Run - Intermediate: Lose Weight, Endurance, Tempo, Pyramid, Fartlek, Hill Repeats, Legs Strengthening - Advanced: 4 × 4 Intervals, Hill Sprints, Agility Booster

Ratings & Reviews

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Fixed long program names overlapping the level tag on the home screen.

Version 1.0.2

The developer, Yoo jaesung, 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 Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Identifiers
    • Usage Data

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Location
    • Identifiers
    • Usage Data
    • Diagnostics

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
  • Yoo jaesung
Size
  • 54.3 MB
Category
  • Health & Fitness
Compatibility
Requires iOS 14.0 or later.
  • iPhone
    Requires iOS 14.0 or later.
  • iPad
    Requires iPadOS 14.0 or later.
  • iPod touch
    Requires iOS 14.0 or later.
  • Mac
    Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
Location
  • This app may use your location even when it isn’t open, which can decrease device battery life.
Languages
  • English
Age Rating
9+
  • 9+
  • Learn More
  • Contains
    Advertising
    Health or Wellness Topics
In-App Purchases
Yes
Copyright
  • © 2026 KOK
  • Developer Website
  • Privacy Policy