Do I need to have a QR reader installed?
No. From jjiffy we read it automatically, since we have a built-in QR reader, so your guest doesn't need to have one installed.
From jjiffy's home page you will see the MY ROLLS button located at the bottom of the screen at all times. Click on it and you will have access to the QR Reader. In addition, here you will also have the rolls that you have previously accessed through this device.
Then the QR READER section opens and immediately the browser will ask you for permission to access the camera on your mobile device. Accept the request to capture the QR code from the invitation that will give you direct access to the roll.