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I've been gathering some real world metrics on QR codes in UK. They seem very popular. See http://shkspr.mobi/blog/2012/10/no-one-scans-qr-codes-apart-from-the

• jiggy2011 14y ago
  I'll guess that it depends very much on the use case. For example I can see just scanning a QR code on a tesco card might be more convenient than remembering to type tesco.com/clubcard/join or texting a specific thing to a phone number. The bus use case is quite good too since looking stuff up on timetables is always a bit of a pain. OTOH when I see one on some random movie poster on the street, I'm really not likely to stand there in the cold, advertising the fact I have a smartphone to anyone around and possibly holding up foot traffic just to get redirected to some website that's probably going to load slowly over 3G anyway.