Only the current version so far — new entries appear as the app ships updates.
駅ナカまっぷ - 駅の出口をARで is a maps & navigation app by Yamico with 1+ downloads (about 2 estimated). Install growth, rank history, SDKs and ad networks.
From the store listing: “Simply point your camera at the station to find out the direction and distance to the exit. Supports 351 stations and 3,491 exits nationwide.”