QR Codes, the square images that contain coded information that can be scanned by a smartphone, are becoming increasingly popular. With the number of smartphone users reaching 6.92 billion this year, access to the information within these ingenious images is within reach by around 86% of the world’s population. Since most, if not all, of the smartphones today feature QR scanners and for those that don’t come so equipped, free apps can be downloaded to add this functionality.