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Smashrun vs Intervals.icu: catalog facts
Smashrun	Intervals.icu
Freemium Free to use, with a paid tier for extra features.	Free Free to use.
Web	Web
Detailed visual statistics for runs Stores and graphs years of history	Detailed fitness, fatigue and power curve analytics Separate zones and metrics per sport
Analysis only, relies on other apps or watches for recording Some features require payment	Web only, requires an account Analytics depth can be a lot for casual users
Web application	Web application
Closed source	Closed source
License not stated	License not stated
Account needed	Account needed
Needs internet	Needs internet
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.