A free app for Android, by SPYIN Android Developer Team.

You can use QR codes for a variety of purposes. They are useful for exchanging information with other people, and you can also use them to find out more information about a particular place or topic. The most common use is to link to a website, but they can also be used for other purposes, such as emailing someone, sharing a link, or advertising a product.

How to Use QR Codes?

First of all, you need to have your phone with you. Then, you need to download the free QR Scanner App from the Google Play Store. Once you have installed it, you will be able to scan QR codes. You will be given the results, and you can use the information that you receive to find out more information about the place or topic that the QR code is associated with.