You don't need your phone to open a QR code. You probably already know how to scan a QR code with your phone. It's simple enough: just open the camera app, point your phone at the code, and tap the ...

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WhatsApp is the world's most popular instant messaging app, which is used for chatting, sharing media, and staying connected with friends, family, and colleagues. It has more than 3 billion users all ...

QR codes have now become a common feature in our daily lives and are appearing on almost everything from product packaging to ...