Intervals Companion

If you're using Strava as your data source for Intervals.icu, your activities may not appear in Intervals Companion.
This is due to Strava's recent data policy changes, which prevent third-party apps like Intervals Companion from accessing detailed activity-level data through the Intervals.icu API.

To fix this:

• Go to your Intervals.icu account settings
• Connect your services directly (e.g., Garmin, Wahoo, Zwift, etc.)

This ensures that full activity data flows into Intervals.icu and becomes visible in Intervals Companion.

➡ More details in this forum thread.

Both the Intervals.icu website and the app allow you to choose how your Form is calculated:

• Absolute value: Fitness - Fatigue
• Percentage: (Fitness - Fatigue) / Fitness

Make sure the setting in the app matches your preference on the website. You can find this setting in the app under Settings > Fitness Settings > Form Calculation.

This error is caused by the Intervals.icu backend stream data API endpoint getting out of sync with your authentication token.

To fix this:

• Open the app settings
• Tap the Full Logout button
• Log back in again

This will generate a new authentication token and resolve the issue.

The HRV widget helps you understand how your current heart rate variability (HRV) compares to your recent trends. It shows where your HRV falls within your 60-day average, adjusted by the standard deviation.

• Top box (1): Your HRV value for today.
• Bottom box (7): Your average HRV across the past 7 days.

Each box is color-coded to quickly indicate whether your HRV trend is improving, stable, or declining compared to your 60-day range.

This can be disabled by going to Settings > Fitness Settings > Show HRV Trend on Fitness Screen.