LernSax is a mobile application designed for users of the LernSax educational platform, enabling easy access to various functions on Android devices. The app features file storage, a messaging system, bulletin board, notifications, a web browser, notes, and forums, facilitating communication and collaboration among students and educational institutions. Users must have an activated LernSax account to utilize the app, which is particularly beneficial for students and teachers in Saxony, Germany.

This older version of the LernSax app is being phased out in favor of the new 'LernSax Messenger' app, which is continuously updated and will serve as the main application for LernSax users. The app requires users to choose between a private or shared device for security and privacy reasons, affecting the availability of features such as push notifications. Users can log in with their existing credentials from the LernSax platform and manage their logins directly within the app.