This app only Work if you are a member of a Club, that payes for live tracking, at VikingTracker.com.NB The app only sends geo fix'es to the server. Once the sailor is logged in there will be nothing of interest to se in the app, except it displayes time for the last geo fix tranitted to server.Read more about how it Works: http://www.vikingtracker.com/how-it-works-and-prices