"Scan now to download" QR code for iPhone App Download

I have recently heard of and ran across QR codes being scanned for a开发者_运维问答pp downloads. I would like to know how this works? Can someone explain to me what program they use to "scan" and what happens after that? I would love to implement this into my apps.

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They are QR Codes, (note these are not barcodes, barcodes are the lines) which can be linked to many things such as websites, provide contact information (such as vcard or email etc). Checkout the Link for more information.

You can create QR Codes using programs or online tools . You basically setup your QR-Code then when a person uses a program that can read the QR-code, it does the corresponding task.

So if I wanted to provide a QR code for my iPhone app, I would just create a QR-code for the URL to my app from the App Store. Then when a user scans that on the iPhone it would open the iTunes program to my exact app.

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artljoe is right. You can use the link of the app from the App Store to create a QR code.

In fact, you can create a universal link to promote downloads with QR codes. With the universal link, when someone scans the QR code, they will be taken to their respective app store. You can read more about it here: https://www.beaconstac.com/app-download-qr-code