Intervals Companion is not a full replacement for https://intervals.icu but serves as a companion app, focused on delivering insights into fitness, fatigue, and form through configurable desktop and home screen widgets and 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 Zwift workouts to Apple Health to help close your Activity Rings.