Exchanging business cards is old stuff now! You need to know the newest social network of contacts. YOOU is an app with a new way to change cards. You can spread all your contacts, social networks and even make an appointment through the app. Just one click! YOOU is an app with a new way to exchange cards with QR Code. You can spread all your contacts, social networks and even make an appointment through the app. Do you have many activities and want a different card for each of them? With YO