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

How to read a QR code from an image in your Samsung Galaxy phone's gallery Although you don't need an extra app to scan QR codes, Samsung's Camera and Gallery apps can't process locally saved ...

TECH How to scan a QR code with your iPhone or Android phone (no apps needed) QR codes are those pixelated squares you see in restaurants, advertisements, stores, food packaging, business cards ...

Use the built-in camera app on your Android device to scan a quick response (QR) code, or use a code scanner on older models.