The Mad Mutt Marine GPS Navigator is an app that is not a chart plotter. This application does not display digitised charts. It is an aid to marine navigation. It is intended for use in conjunction with charts that are printed on paper.

There are a number of things that this app is not. It is not a chart plotter. It does not display digitised charts.

In order to navigate, you need to understand what you are doing and why you are doing it. It is not the app that displays the map. It is the application that provides the information that is necessary to make the map and navigate.

This app has been designed to be used by marine navigation. In order to make a marine navigation route, you need to know the route that you are travelling on and the depth of the water. The depth of the water is necessary in order for you to know if you are in a sea, a river or an estuary.