QR codes are a great way to relay a lot of information in a small space and your Android phone has multiple ways to read them. Here's how to do it.

It's expected to work in both Google's own QR Code Scanner and in other apps. Because this is an API-level upgrade, app developers won't have to grant any new camera permissions for the tool to work.

Your Android or iPhone can probably already scan QR codes. Here's how to do it no matter what phone you have.