Marine Navigation, Find your road on the sea! GPS chartplotter for your boat. - Marine Navigation, Find your road on the sea! GPS chartplotter for your boat.
Choosing Boating iPhone Apps for GPS Marine Navigation on Boats - My Boat Life
i-Marine Apps: GPS Nautical i-Boating
Using your Iphone as a marine GPS chartplotter for fishing and boating
How to Choose a Marine GPS App - Wavve Boating
15 Apps for Navigating with your Apple or Android Device - Sail Magazine