OsMoDroid for OsMo - Tracker is a free Android app developed by AllTogether under the Travel & Navigation category. It is a comprehensive app that allows users to use most of the functions of the OsMo service. By tapping on the logo in the upper left corner or swiping from left to right, the app menu can be accessed.

The app's main functions include transferring coordinates in active mode with two-way communication with the server, transmitting coordinates in hiking mode with a specified interval in seconds, managing permalinks, joining groups, and seeing their members and content on the map, viewing saved trips on the server in the "Tracks" section, and more. However, if the app freezes, crashes, or has problems running in the background, users are advised to check their smartphone according to the instructions from the dontkillmyapp.com website, as most smartphones require additional settings for background operation with the screen off.