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AAT Another Activity Tracker vs Locus Map: catalog facts
AAT Another Activity Tracker	Locus Map
Free Free and open source under the GPL-3.0.	Freemium Free to use, with paid features available.
Android	Android, iOS
Stores tracks as standard GPX files Offline maps, hill shading and offline POIs	Offline maps and offline routing Detailed route planner with elevation and surface information
Interface is utilitarian compared with commercial trackers Offline maps must be downloaded separately	iOS gets a Lite version Many options can make it complex for casual users
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0	License not stated
No account needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.