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Aqua Map vs OpenCPN: catalog facts
Aqua Map	OpenCPN
	Screenshots
Best for: Recreational boaters navigating US coastal waters, the ICW and the Bahamas	Best for: Sailors who want a full chartplotter on a laptop or onboard computer
Free + paid options Free to start, with paid options for additional charts and features.	Free Free and open source.
Android, iOS	Windows, macOS, Linux, Android
Uses NOAA, USACE and CMOR chart sources Charts available offline Anchor alarm for drift warnings Coverage of the Bahamas and the ICW	Runs on Windows, macOS, Linux, Raspberry Pi and Android Plugin manager with a catalog of community plugins Designed for use at the helm while underway No cost for the software itself
Chart coverage centres on US waters and the Bahamas Some features require payment Not open source	Desktop-style interface is less suited to phones than dedicated mobile apps Some chart sets must be obtained separately
Downloadable app	Downloadable app
Not open source	Open source
License not stated	License not stated
Not stated if an account is needed	No account needed
Offline features available	Offline features available
Official website Full listing and sources Sources for Aqua Map aquamap.app play.google.com/store/apps/details apps.apple.com/us/app/aqua-map-boating/id919552329 Catalog checked September 23, 2026	Official website Full listing and sources Sources for OpenCPN opencpn.org play.google.com/store/apps/details Catalog checked September 23, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.

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