LES INFOS is a free information app developed by SNCF that provides a comprehensive coverage of the company's activities and news. The app features a user-friendly interface that is intuitive and customizable. It covers various topics, including the four fundamental principles of SNCF, which are safety, production robustness, passenger information, and human factors. In addition, it also covers social and human resources information, daily activities, sectors, and major strategic orientations of the company in both local and international territories. The app also highlights technological and digital innovations, societal and environmental issues.

Users can customize the app according to their interests, receive notifications on their preferred topics, save favorite contents, and even create their "Twitter Wall" with their selected SNCF accounts. After logging in, users can also comment on articles and access exclusive content.

Overall, LES INFOS is a great app for anyone who wants to stay informed about the latest news and developments in SNCF. However, it may not be suitable for individuals who are not interested in the activities of the SNCF group.