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Locus Map vs CalTopo: catalog facts
Locus Map	CalTopo
Freemium Free to use, with paid features available.	Freemium Free to use with paid plans for additional features.
Android, iOS	Android, iOS, Web
Offline maps and offline routing Detailed route planner with elevation and surface information	Real-time collaborative editing of the same map Slope angle, snow depth, weather and public land layers
iOS gets a Lite version Many options can make it complex for casual users	Many data layers focus on the United States Some features require a paid plan
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
Works offline	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.