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 PO is designed for students and employees of the Opole University of Technology. Application provides the following modules: Class schedule - by default the class schedule is shown for to