Well, since it is free, will give it a look...I assume they then want to sell you chart data or something, but could not tell from their web page...
[On edit: yup. "buy charts" is one of the soft keys on this program. When you zoom in, it says "buy the chart for this coverage area for greater detail. Navionics got it right, buy the app and get all the charts for free. Thumbs down, deleted the app.
