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 ...

How to Look for Android Apps by Scanning QR Codes. Installing new apps for your Android device is easy: launch the Android Market application, search for an app and install it.

Type either code or scanner. As you type, you'll see the Code Scanner app icon show up as an app suggestion. Tap to open it.