See the coverage map on our SonarChart page. With the purchase of a subscription package from within the free app you get:Ĭhart Updates - including our official Nautical Chart data, as well as SonarChart™, our high-definition bathymetric mapping for selected areas of the world. If you would like to continue have access to Charts and Advanced Features, you can purchase a one-year subscription for your desired region from within the app by going to Menu > Charts & Upgrades. The free app download includes basic features and a two-week free trial of Charts and Advanced Features.Īfter your free trial period you will have access to base mapping only. Navionics offers a free Boating app download for Apple and Android.