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Compare OpenCPN with alternatives

• OpenCPN vs qtVlmqtVlm adds weather routing and a GRIB viewer with S57, S63, raster and MBTiles charts on Windows, Android and iOS, but it is closed source and mobile versions are paid.
• OpenCPN vs iNavXiNavX is a phone and tablet chartplotter supporting more than 25 chart providers, AIS and GRIB weather, with commercial charts bought separately and not open source.
• OpenCPN vs OrcaOrca is a mobile marine app with sail and weather routing, but full chartplotter features need separately purchased Orca hardware and it is not open source.
• OpenCPN vs SeapilotSeapilot is a mobile marine app with AIS, NMEA support and GRIB weather routing, but most navigation features require Premium and it is closed source.
• OpenCPN vs OpenPlotterOpenPlotter is a Raspberry Pi and Debian toolkit that bundles OpenCPN with AvNav and XyGrib plus instrument connections, needing suitable hardware and Linux setup.
• OpenCPN vs OpenSeaMapFree community nautical chart built on OpenStreetMap, with seamarks, harbours and depth data.
• OpenCPN vs Savvy NavvySavvy Navvy is a simple phone app that plans routes around wind, tide and current, but is not a replacement for certified onboard equipment.
• OpenCPN vs Aqua MapAqua Map is a mobile app using NOAA, USACE and CMOR charts offline with an anchor alarm, with coverage centred on US waters and the Bahamas.
• OpenCPN vs BoatSpeedyAn Android GPS speedometer and offline waterway navigation app for small motor boats, canoes and rowing boats.
• OpenCPN vs ArgoArgo offers nautical charts, trip planning and crowdsourced marina reviews on mobile and web, with autorouting in paid plans and no open-source code.