Intervals.icu
Free training calendar, analysis and workout planning.

- Access
- Free, optional supporter plan
- Type
- Analysis
- Setup
- Web app; syncs with Garmin, Wahoo, Strava, Zwift and more
What it does
Your rides land here as a calendar with automatic interval detection, power-curve and HR analytics, and fitness, fatigue and form tracking. A workout builder pushes structured sessions back out to Garmin, Wahoo, Zwift and other platforms.
Getting started
Sign up for a free account and connect your devices or Strava to pull in your history automatically. The core platform stays free; an optional $4-per-month Supporter plan unlocks extras and funds development.