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COROS app vs Polar Flow: catalog facts
COROS app	Polar Flow
Free Free to download for COROS watch owners.	Free Free to use with Polar devices.
Android, iOS	Android, iOS, Web
Device management and data sync in one app Performance analytics from synced workouts	Syncs data from Polar watches and heart-rate monitors Available on the web and on phones
Only useful with a COROS watch	Only useful with Polar hardware Web service was under maintenance when checked
Downloadable app	Downloadable app, Web application
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	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.