The demographics of American QR code scanners

"With the numbers increasing it is key for marketers to focus on the demographics of QR code users. Males make up the majority of the scanning population at 69 percent. As far as mobile platforms, Android leads the way with 53 percent of barcode scans. Apple iOS is the other notable mobile platform that accounted for 43 percent of scans.
Over 75 percent of the QR Code scanning demographic is comprised of people 25 years and older. Meanwhile, 60 percent of people scanned from home, according to comScore data cited in the ScanLife report. The most popular hours of scanning seem to fall midday and early evening between the hours of 3 and 7 pm."

Source:  Data from ScanLife, reported by Clickz, 8th August 2012

Note - Based on data from ScanLife's own app only