Make your daily life easier with the official mobile app for the city of Rosny-sur-Seine. Simple, smart and fun, you will find all the practical information about your municipality at your fingertips, wherever you are. Thanks to the Rosny-sur-Seine app: - Follow the news and events of the city as closely as possible, - Access a multitude of useful information: timetables and contact details of public services, guides to procedures, days and times of collections, directories of associations, tra