The document describes an app called "Lost" that provides bus, train, and car locating services without requiring WiFi or mobile data. It allows users to check bus and train times by searching their stop, set alerts to remind them when to leave for the station, and locate their car in a parking lot. The app uses maps and satellite communication to work offline. It aims to help people who get lost or have trouble determining transit times. The developers believe combining these functions into one app makes it more useful than competitors and aim to launch during peak travel seasons.