M Revisori: Margit, Österreich 25.04.2022 3 Tage Saver Combo Nice guides. The App did not run in my country before visiting Istanbul (the guide installed just before the tour into Hagia Sophia) and the App did not do well in the sightseeing-places. The Apps were other to install as in the e-Mail were mentioned. Only English-speeking guides, was no need for my friend- she cannot understand english very well. Police in Istanbul could not declaire, where the meeting point near Topkapi was, but I found a Istanbul-Welcome-guide near Hagia Sophia, who helped us.