WhatsApp will soon add and share contacts quickly using the QR code. This new way of adding contacts will facilitate the task of manually uploading data such as name and phone number, since the app will automatically complete all information fields, as it is possible to do on Snapchat and other similar platforms. Currently WhatsApp has two QR code readers, one of them allows you to check the security of a conversation and the other is used to connect WhatsApp Web, but .. none of them allows...