



OpenCPN is described as 'Free software (GPLv2) project to create a concise chart plotter and navigation software, for use underway or as a planning tool' and is an app in the travel & location category. There are five alternatives to OpenCPN for a variety of platforms, including Web-based, Android, iPhone, iPad and Self-Hosted apps. The best OpenCPN alternative is zyGrib, which is both free and Open Source. Other great apps like OpenCPN are Open Nautical Charts, OpenSeaMap, Anchorages: The Cruising Guide and Navionics Boating.




OpenNauticalChart offers free seacharts for everybody. This charts are usable (offline) with several ship-plotters and Navigation-equipement on board.

OpenSeaMap's goal is to add nautical and tourism information a sailor could be interested in to OSM (OpenStreetMap) and to present it in a pleasing way.




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.



Get up-to-date, detailed charts you can use offline plus a boatload of features on your mobile device, so they’re on hand wherever you go. The Boating app is a must-have for cruising, fishing, sailing, diving and all your activities on the water.



