Offline line maps for Paris (RATP). It includes a complete set of offline maps for metro, bus, night bus, airport access, RER and transiliens from the official RATP sources. No internet connection required. You can zoom in, zoom out, scroll around. Quick, easy, and there when you need it! This app is excellent for visitors to Paris and longtime residents alike. Line maps included in the app: - Metro: Paris subway and tramway. - RER: Ile de France (Paris suburbs) - SNCF Transilien trains - Bu