QR codes are pixelated black and white squares that perform magic when we point the cameras on our phones at them—but what’s going on that makes this little spell possible? QR codes are akin to the ...

Faith writes guides, how-tos, and roundups on the latest Android games and apps for Android Police. You'll find her writing about the newest free-to-play game to hit Android or discussing her paranoia ...

How big your code should be printed depends on how many characters you “encode” into it. It can take an absolute maximum 7,000 characters, but realistically most people will encode about 20 letters or ...

QR codes have a wide range of uses that help people avoid contact with objects and close interactions with other people, including for sharing restaurant menus, email list sign-ups, car and home sales ...