I was down in West Coast Florida on a vacation and decided to rent a boat for a few days. Didnt really know my way around so I took a chance on this app and it turned out to be much better than expected. I was able to plot a course the night before to a likely looking redfish hole and really got into them the next day. Love the auto track feature. It shows an arrow on the screen that shows where you are headed. I used it on my phone that day but since then I have installed on my iPad.
Fishgrouse about Marine Navigation-USA Lake Map