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RunGap vs Intervals.icu: catalog facts
RunGap	Intervals.icu
Freemium Free to download with paid features.	Free Free to use.
iOS	Web
Connects to around 50 fitness services and devices Exports and backs up workouts	Detailed fitness, fatigue and power curve analytics Separate zones and metrics per sport
iPhone and iPad only Closed source	Web only, requires an account Analytics depth can be a lot for casual users
Downloadable app	Web application
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Account needed
Not stated if it works offline	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.