What fitness devices sync automatically with intervals.icu?

The platform integrates seamlessly with Garmin Connect, Wahoo Fitness, and Polar Flow, automatically syncing activities once authorized. It also allows manual uploads or data imports from other training apps via standard FIT or TCX files.

Is intervals.icu free to use?

Yes, intervals.icu offers a robust free tier that allows users to view basic analytics and track their training over time. They also offer a "Premium" subscription tier that unlocks advanced metrics, deeper trend analysis, and unlimited interval tracking.

What metrics does intervals.icu use to calculate fitness and fatigue?

The platform uses standard endurance metrics like TSS (Training Stress Score), CTL (Chronic Training Load), and ATL (Acute Training Load) to track fitness and fatigue. It also provides advanced power duration curves for cyclists and runners.

Can you analyze running workouts on intervals.icu or is it only for cycling?

Yes, you can absolutely analyze running workouts alongside cycling, swimming, and other endurance sports. The platform provides specific running dynamics like stride length, ground contact time, and heart rate variability if your device records them.

Where does intervals.icu rank on Lunoo?

intervals.icu is ranked #21 in Lunoo's Best Fitness rankings with a score of 7.9/10.

How does intervals.icu compare to competitors?

Lunoo provides objective, AI-powered comparisons. Use the comparison tool to see intervals.icu side-by-side with any alternative.

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intervals.icu

7.86

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description intervals.icu Overview

intervals.icu is a powerful, web-based platform (with mobile access) for endurance athletes who want deep data analysis without the high cost of premium apps. It provides advanced metrics like TSS, power duration curves, and heart rate variability (HRV). It is highly favored by serious cyclists and runners who want to see their training load visualized in a comprehensive dashboard.