Compare software

OpenCPN vs Orca: catalog facts
OpenCPNOrca

Screenshots

OpenCPN dual chart view with nautical depths, buoys and navigation controls

Screenshots

Nautical chart view with buoys and depth contours and a bottom bar for routing, search, weather and instrumentsRoute planning screen with a sailing route, waypoint options, departure time and distanceWind forecast map of northern Europe with an hourly wind and gust table below

Best for: Sailors who want a full chartplotter on a laptop or onboard computer

Best for: Sailors wanting a modern app-based chartplotter

Free

Free and open source.

Free + paid options

App pricing is not detailed here; Core and Display hardware are sold separately.

Windows, macOS, Linux, Android Android, iOS
  • Runs on Windows, macOS, Linux, Raspberry Pi and Android
  • Plugin manager with a catalog of community plugins
  • Designed for use at the helm while underway
  • No cost for the software itself
  • Sail routing with automatic rerouting
  • Weather routing built into trip planning
  • Can connect to boat instruments through Orca Core
  • Desktop-style interface is less suited to phones than dedicated mobile apps
  • Some chart sets must be obtained separately
  • Full chartplotter features need separately purchased hardware
  • Pricing for app features is not clearly stated
Downloadable app Downloadable app
Open source Not open source
License not stated License not stated
No account needed Not stated if an account is needed
Offline features available Not stated if it works offline

Sources for OpenCPN

Catalog checked September 23, 2026

Sources for Orca

Catalog checked September 24, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.