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Sep 5, 2014 at 17:28 comment added HasH_BrowN I understood what you meant. There are a few camera apps, I don't know the names, that when a QR code is front of the lens it will switch to reader mode.
Sep 5, 2014 at 17:17 vote accept dss539
Sep 5, 2014 at 17:16 comment added dss539 Yes, of course a QR Code Reader is necessary. I was hoping for some built-in by default app that I simply was unaware of. I hope my question didn't imply that I want to teach them how to visually decode a QR code with their eyes... this is the android SE after all. :)
Sep 5, 2014 at 17:13 history answered HasH_BrowN CC BY-SA 3.0