Mobi events is a new registration tool for event organizers. Movi-events allows preregistration process and a QR code where all participant’s data are encompassed. The organizer can know how many people attended the event and who is missing.The set up is made in 3 days and the organizer must set up the necessary datas in the webplatform Mobi Events and put a link to the registration website of the event. The entrance check is made on reading the QRcode (printed or in a smartphone).Exhibitors can also use the same system to know who is visiting their stand.