Those of you who are planning to come to Sochi for the Winter Olympic games may find “2GIS Sochi” (by DoubleGIS) to be a very useful free mobile app.
2GIS is a very popular free app that has the best maps and local business classifieds information. They have most big Russian cities covered, including Sochi, but for the Olympics they’ve released special app for Sochi only. Deffinitely available for Android, not sure about iOS and Windows 8/Windows Mobile. If Sochi-only app is not available for your platform, get the full version, and download Sochi map in it.