QR codes are everywhere these days. From airports to superstores, you will find specially embedded codes on products which you can scan using your mobile phones. QR codes is an amazing innovation which has made things a lot easier. You don’t need to have a boarding pass if you know how to scan a QR code at the airport. A Quick Response Code packs textual information in it, which you can unlock by a scanner. Similarly, you can unlock, make payments, authorize certain actions, login websites and computers using QR codes. But scanning a QR code is a bit tricky, and you must learn how to do it correctly, otherwise it could result in a system lockdown.
As expected, there are apps for scanning QR codes. Not every app works perfectly, but there are a few which are impeccable in performance, and very famous on the play store because of their stability. If you are going to scan a QR code, you must have one of these apps installed in your mobile phone. Otherwise, you will not be able to scan a QR code.
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Read more here:: How to Scan QR Code in Android and iPhone