Optimize your journeys in Paris metropolitan area with official “RATP” application! - Customize your home screen with your favorite real-time information, - Find the best itinerary to your destination right from the home screen, - Find Metro, RER, Bus, Tramway and Transilien stations around you, - Get the service status and next stops time in real-time anywhere on the RATP network, - Get the network and lines maps for the Metro, RER, Bus, Noctilien, Tramway and airport lines.