僧侶、スルタンから社会主義者へベオグラードのセルフガイドツアー

This is a decent audio soundtrack within a dysfunctional app. The map showing the order of the stops often misses numbers completely, and in one case said I needed to walk about 1km back and forth between stops. The map with the order of a self-guided walking tour is pretty critical for a successful tour, so I grade this tour low overall. They say I can ask for my money back, but not sure its really worth it. Fix the app.