The demo deck summarizes the features of a mobile and web application for GPS tracking. The mobile app allows for automatic GPS tracking, tracking history, one-click navigation, push messages. The web application allows users to view tracks, manage a network of users, view maps, customize profiles, export data to Excel, and set up customized email notifications. Key features of the mobile app include real-time location tracking, navigation to contacts' locations, and sending push messages. The web application allows users to search track history, view groups and contacts on maps, and analyze tracking data.