Mobile USOS is the only official mobile application developed by the USOS team of programmers. USOS is the University Study System used at many universities in Poland. Each university has its own version of the Mobile USOS, depending on the USOS version currently implemented at the university. The Mobile USOS WUE is designed for students and employees of the Wroclaw University of Economics. Application version 1.13.1 provides the following modules: Class groups - information about the course,