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OSMTracker for Android vs AAT Another Activity Tracker: catalog facts
OSMTracker for Android	AAT Another Activity Tracker
Free Free and open source under the GPL 3.0.	Free Free and open source under the GPL-3.0.
Android	Android
Waypoints by tag button, voice, text note or photo Customizable button layouts	Stores tracks as standard GPX files Offline maps, hill shading and offline POIs
Android only Built for mapping surveys rather than turn-by-turn navigation	Interface is utilitarian compared with commercial trackers Offline maps must be downloaded separately
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-only	License: GPL-3.0
No account needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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