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Intervals.icu vs TrainingPeaks: catalog facts
Intervals.icu	TrainingPeaks
Free Free to use.	Freemium Free sign-up with paid plans for additional features.
Web	Android, iOS, Web
Detailed fitness, fatigue and power curve analytics Separate zones and metrics per sport	Built for athletes and coaches working together Structured workouts and plans from coaches
Web only, requires an account Analytics depth can be a lot for casual users	Many features need a paid plan More complex than a simple run tracker
Web application	Downloadable app, Web application
Closed source	Closed source
License not stated	License not stated
Account needed	Account needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.