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

Sites and apps similar to ReefPin include OpenCPN, which is free and open source. Other options are Anchorages: The Cruising Guide, FishingScroll, Angler and Fatsack - Fishing Lure Hub. In total there are nine GPS Navigation Services like ReefPin for iPhone, iPad, Android, Windows 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.





Angler is a comprehensive fishing app that provides weather forecasts, bite predictions, lunar and solar data, tide forecasts, and a catch log to optimize your fishing expeditions.



Fatsack is your space to organize lures, track which lures work best for you and share personalized catch and lure stats to social.






Plan fishing trips with interactive lake, river, and coastal depth maps. Contours identify measured survey data separately from approximated depths, while species-based reads highlight structure, timing, and tactics. Maps are free to inspect without an account and are not for navigation.

A private fishing journal that helps anglers track their fishing history and discover personal patterns.



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.



