Most of the applications, products now a days comes with QR code. QR code helps you to get rid of searching the right application or product on web. It directly takes you to the Genuine Site.
So here are some options for you to scan QR codes from your smartphones
For android os, you will require QR Code Reader app. QR Code Reader is the fastest and most user-friendly QR code scanner available. If your Android came with a built-in scanner, this would be it.
For windows operating systems, QR code reader comes built in.
Press the Camera button on your phone, then tap Lens > Bing Vision.
Scan the QR Code by pointing your phone at it.
While QR reading isn’t built into iOS, there are, of course, apps for that. There are tons in the App Store. Some are free and some are paid. You can download any and use it.