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FitTrackee vs Intervals.icu: catalog facts
FitTrackee	Intervals.icu
Free Free and open source; you provide the server.	Free Free to use.
Web, Self-hosted	Web
Activity data stays on your own server Imports GPX files from most devices	Detailed fitness, fatigue and power curve analytics Separate zones and metrics per sport
Requires running and maintaining a server No phone recording app described in the research	Web only, requires an account Analytics depth can be a lot for casual users
Self-hosted	Web application
Open 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.