OpenCPN is a free software (GPLv2) project to create a concise chart plotter and navigation software, for use underway or as a planning tool.
Cost / License
- Free
- Open Source
Application type
Platforms
- Mac
- Windows
- Linux

Apps similar to Navionics Boating include OpenCPN, which is free and open source. Other options are Anchorages: The Cruising Guide, ReefPin, Helm Boating and EkyNavy. In total there are five GPS Navigation Services like Navionics Boating for the web, iPhone, iPad, Android and Mac.
OpenCPN is a free software (GPLv2) project to create a concise chart plotter and navigation software, for use underway or as a planning tool.

The Anchorages app curate extraordinary anchoring spots from secluded coves to bustling marinas, connecting sailors with the perfect place to drop anchor. Our community-driven platform offers detailed satellite charts, real-time conditions, and insider tips from other sailors.



ReefPin is a recreational fishing app built for Egyptian waters — the Red Sea, the Mediterranean, the Gulf of Suez, the Nile and Lake Nasser. It covers 178 mapped fishing spots with legal-status information, live sea conditions by coast, a guide to 168 fish species, fishing...

Helm is a marine navigation app for United States waters. It combines NOAA electronic navigational charts, USACE eHydro dredging surveys, state lake elevation data and live NOAA CO-OPS tide observations into a single depth figure calculated against the boat's draft, and it...


EkyNavy is a digital sailing logbook built for real conditions at sea. GPS records your route in the background, even with the screen locked or in airplane mode, and any event (sail change, engine start, reefing, weather observation) is logged in one tap with position and time...


