This is a free version (not even any adverts!) of the full Navigator 2. It is adequate for most purposes, but not all features of the full navigator are available. Try this version first and see how you get on with it. The free version has not been updated for a some years, but still seems robust. Please let me know if that is not the case.
To view the considerable capabilities of the app, please download the instructions
No mobile network coverage is necessary. This app uses your device's built in GPS. All that is required is a clear view of the sky (the GPS signal propagates through wood and plastic; the app should work below deck on all but metal boats).
The free version is basically the same as the full version except that:
•Waypoints restricted to 40.
•No ETA, VMG to waypoint or cross track error displayed in Waypoints
•No support for GPX files
•Anchor alarm will not send SMS text messages to another phone if the boat moves.
•Re-written user interface being the navigator into the modern world, using the Android5 and 6 user interface components
.•At the same time, I have taken care to preserve the look and feel of the original. Users of the original app should not feel lost.
•compliant with the new Android6 security model.
•Flash-light (Android5 and 6 users now have one anyway).
•Substantially re-factored code to make the app leaner and meaner.
•Rapid entry mode for new waypoints.
If you have a previous version of the navigator then waypoints, this app should detect existing data from the previous version in a completely seamless way.
Preserved and refined original features include
•Designed by and for a sailor. You may find that some of the main layouts look “big and blobby”. Trust me, bog and blobby works at sea. Small and fiddly layouts do not.
•Store unlimited waypoints and routes.
•View waypoints alphabetically of by distance from your current position.
•Waypoints can have notes associated with them.
•Waypoints can be exported and viewed on Google Earth
•Display range and bearing to a waypoint.
•When a waypoint is reached, a waypoint alarm can advance you to the next waypoint in a route.
•Make logs of where you have been, which you can annotate.
•View logs as display on the phone.
•Share logs with Google Google Earth either on your phone or desktop computer.
•If you are a sailing boat, engine hours can easily be logged.
•Crew on watch can now be selected; hours are now logged.
•The log service can be paused.
•Logs can be exported and shared (by email) either as KML documents (viewable with Google Earth) or HTML documents (viewable in any web browser).
•A barometer monitoring service is available for phones that support a barometer sensor (not many phones do). You can view barometer readings recorded for the last three days, and the barometer service continued to run if you leave the app, make phone calls or whatever.
•Anchor alarm watch service. Alerts you if you have moved more than a pre-defined distance.
•Limited text to speech on the "Waypoints" view.
•Once started, the log, anchor and waypoint alarm services will continue to run, even if you quit the main navigator application. They will continue to run while you make phone calls or use your phone for email, Internet browsing or pretty much anything else.