Great app for international travel!

You download the cities you are going to before you leave your country and you can access all the metro info available for that city on the app with no network connection. That means while you are underground you can still look at all the stops on the line you are on to validate you are going the right direction and on the right line underground. Ive used it in New York, Los Angeles, DC, Madrid, and Rome. Soon to test in Japan in Tokyo and Kyoto!

Jaxrevenge about MetrO, v0.9.7