If you are looking for a physical , it is often recommended for tourists to carry one in both English and Cyrillic to help navigate boards at the stations. Metro app? Yandex Metro - Apps on Google Play
: Provides information on station exits, operating hours, and even which metro car is best for a quick transfer. Yandex.Metro
: Allows users in certain cities like Moscow to top up transport cards (e.g., Troika ) directly through the app. If you are looking for a physical ,