B3App is a key support for companies and event organizers to launch and organize events of all kinds. Thanks to its "all-supports" function (web and mobile applications available on Android and iOS), this platform can support events of any kind: virtual conferences, hybrid congresses, in-person business seminars, etc. The platform is also fully designed to be customisable in order to suit the branding, colors and identities of companies. There are many functionalities available in the platform such as agenda management, interactivity and feedback. It allows attendees to live an immersive experience and to give their opinions about the event. Other features such as check-in and self check-in help event organizers monitor the attendance of participants; push notification...