Intervals.icu Companion

3rd-Party Intervals.icu App

Free · In‑App Purchases · Designed for iPad

Intervals Companion is a third-party app that uses the Intervals.icu data API. It is not a full replacement for https://intervals.icu, but rather a companion app focused on delivering insights into fitness, fatigue, and form through configurable desktop and home screen widgets, as well as Apple Watch faces. These widgets provide quick access to recent data and update automatically in the background. Silent notifications trigger updates when new activities or wellness data are uploaded to Intervals.icu. To enable automatic updates, turn on Background App Refresh and Notifications in your device settings. Key Features: • Interactive Fitness, Fatigue & Form Graph: View trends over time with drag-to-inspect for past activities, prior form data, and planned workouts. Predict future fitness, fatigue, and form based on scheduled workouts. • Apple Watch App: View fitness, fatigue, form, and vitals data over time. • Multi-Platform Widgets: Available for iOS, iPadOS, watchOS, and macOS. Display key data on iPhone & iPad home screens, Watch faces, and Mac desktops. • Vitals Tracking: Graphs for HRV, readiness & sleep scores, resting & sleeping heart rates. • Automatic Data Updates: Silent push notifications update data when new activities or wellness records are added to Intervals.icu. • Sports Summary Widget: Weekly distance and/or time-based goal rings with customizable colors & display options. • Customizable Data Settings: Control refresh schedules, graph display settings, and widget data limits. • Sync activities to Apple Health to help close your Activity Rings.

  • 4.8
    out of 5
    22 Ratings

Fixed chat and gear loading bugs

The developer, Spencer McEwen, 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
    • Spencer McEwen
    Size
    • 44.3 MB
    Category
    • Health & Fitness
    Compatibility
    Requires iOS 18.6 or later.
    • iPhone
      Requires iOS 18.6 or later.
    • iPad
      Requires iPadOS 18.6 or later.
    • Mac
      Requires macOS 15.6 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 2.6 or later.
    • Apple Watch
      Requires watchOS 11.1 or later.
    Languages
    English and 6 more
    • English, Danish, Dutch, French, German, Italian, Spanish
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    • © 2026 Spencer McEwen