OpenCPN

Here is a special app that serves you as a chart plotter, as well as a GPS navigator. The program supports a whole of features and tools with it utilizes to achieve the purpose for which it is developed. Using this app, you can calculate your routes, thanks to the GPS navigation support. Also, this program supports Electronic Navigational Chart (Enc) which displays the position, heading, and speed of a ship, more information can be found on the AIS (Automatic Information Systems) or radar. The best people to use this app are mariners; however, it is an app for everyone to use. There are five display modes supported by this app which are single-chart, north-up, quilted, course-up, moving-map, and chart-up.

The GPS tracking function is effective and reliable to use for tracking ships; waypoint navigation and autopilot output are supported. You do not require internet connectivity to be able to use this app. Furthermore, the program supports standard S 57 charts, encrypted S 63 vector charts, raster charts, and others. You can plan routes with the tidal support or using the inbuilt great-circle routing feature. There are many languages supported by this application, up to 20+ languages. Plus, there is an integrated weather routing plugin; more plugins are quite available to download.

OpenCPN is licensed as freeware for PC or laptop with Windows 32 bit and 64 bit operating system. It is in maps / gps category and is available to all software users as a free download.