PolyNavi is an Android application developed by Aleksandr Starovoitov. It falls under the category of Education & Reference and is available for free. The app serves as a schedule and navigator for students at the Saint Petersburg Polytechnic University.

With PolyNavi, students no longer have to wander around in search of their classrooms. They can simply enter the room number and quickly find their way to it, saving time and effort. The app also includes a navigator feature that determines the user's location on the university campus and provides the shortest route to the specified Polytechnic building.

In addition to navigation, PolyNavi also offers offline access to the user's class schedule. Students can stay informed about their upcoming classes and avoid being late.

Overall, PolyNavi is a useful tool for students at the Saint Petersburg Polytechnic University, providing them with a convenient way to navigate the campus and stay updated on their class schedule.