476 reviews
Content rating
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About this app

OpenCPN is a full featured Chart Plotter and Navigator application.

Building upon the tradition and experience of OpenCPN for the desktop computers,
OpenCPN for Android brings many of the same features to the mobile platform.

*BSB v3 raster chart (RNC) support.
*S57 vector chart (ENC) support.
*IHO S52 compliant display of S57 vector charts.
*CM93 vector chart support, with per cell offset corrections.
*MBTiles chart overlay support.
*Integrated Chart Downloader
*Single-chart and Quilted display modes.
*North-up, Course-up and Chart-up display modes.
*Moving-map display mode.
*Route navigation with ship tracking functions.
*Waypoint navigation.
*True north or Magnetic north navigation
*Device-integrated GPS support.
*Bluetooth remote GPS support.
*Network (TCP/UDP) GPS device support.
*Standard NMEA 0183 GPS interface.
*Advance NMEA message handling structure, with built in multiplexer.
*Autopilot output support.
*Networked AIS input with full target tracking and collision alerting.
*AIS support for SART with selectable MMSI for automatic MOB handling.
*AIS support for DSC and GPSGate Buddies.
*Anchor watch/alarm functions.
*GPX Waypoint, Track and Route input and output file support.
*Tide and Current prediction and display by location.
*Route planning with tidal support.
*Builtin great-circle routing.
*GPX Layers for annotation of charts.
*A selection of display themes.
*Google Maps integration.
*Integrated links to eBook User Manual.

By using OpenCPN, you will become part of a worldwide community dedicated to the advancement of electronic charting for your kind of marine application. Whether cruising, racing, fishing, or working professionally on the water, OpenCPN has the features you need for more safety, performance, and fun.

Join us on our dedicated support Forum at

Updated on
Aug 20, 2022

Data safety

Developers can show information here about how their app collects and uses your data. Learn more about data safety
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476 reviews
James Ebersold
November 27, 2021
The application has a lot of nice features but on a tablet it has some issues. I'm using an ASUS ZenPad 3S 10 (Z500M) that has 9.7" display that's got 2048x1536 resolution. I sometimes get dialog boxes, I think mostly in full screen mode, that I can't see the ok or cancel button to get out. The app in those cases ignores the back button so I have to terminate it. I sometimes get crashes although not while navigating. EDIT: 2021 updates have improved things significantly going to 4 Stars..
15 people found this review helpful
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A Google user
December 30, 2018
1200 miles over 3 months this past summer in British Columbia on a 36ft sailboat Islands, narrow passages, major tidal currents and some rapids. New anchorages, coves, and harbours ever night. OCN on Samsung Tab 2, worked great. Every serious user would like a few tweaks to better match their usage, but I recommend it to everyone who asks. Going back north next summer. Have a copy on a laptop, but will take a second tablet as a backup because it is so handy in cockpit. Thanks
6 people found this review helpful
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L Barnes
October 7, 2022
Recent update was dreadful. The app has stopped working. Prior to that it was very good, really useful. Developers - please restore previous functionality. This was a paid for app, it's not worth the money if it doesn't work. ~Additional: Despite another update ... it's still not working. ~Finally, sorted. The answer was in the OpenCPN Facebook group. The File Migration doesn't work. Only way was to hook tablet to a laptop, find & manually transfer the files into the Apps Chart Folder
16 people found this review helpful
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What's new

1. Correct display of background charts with some large scale chart sets.