OsmAnd has a nautical map plugin you can enable.
The plugin is just part of why OsmAnd is good for nautical use, there is also an alternate view in the configure map menu for nautical use.
For some reason osmAnd was the only GPS map that would work on a flight for me.
The plugin is just part of why OsmAnd is good for nautical use, there is also an alternate view in the configure map menu for nautical use.