This app is a must-have for sailors, divers, cruisers, and anglers who require a GPS plotter (or perhaps any boating tool for that matter) that will assist them in their daily tasks. It features detailed charts of the European waters, a sonar chart with high definition contours, automated routes you can create, a dedicated and constantly updated window for the tides, currents, and the weather, and more. 

The upgraded version gives you all the benefits of the Navionics +, some of which include: downloadable charts, dock to dock auto-routing, navigation module, and more.