Does anyone have any good recommendations for marine navigation apps?

chasebennett

Chase
Nashville, TN

jmh2002

If you want something free you can try OpenCPN here: https://opencpn.org/

The desktop version is free, the mobile app needs to be purchased. Both free and paid charts can be loaded. It's used extensively by cruisers worldwide. Supports plugins and extended features.

Good support community here:
http://www.cruisersforum.com/forums/f134/
https://bigdumboat.com/aocpn/forum/index.php

Also of interest if you want to build or extend your own boat navigation/instrument system is http://sailoog.com/openplotter (works together with OpenCPN too)

Hope this helps :)