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 ...

QR codes can house a whole lot of data, from the URL of a webpage or service, to where to directly download an app. Here's how to scan them.

Not all smartphones require a third-party app to scan QR codes. Kurt "CyberGuy" Knutsson shows you how to scan codes using iPhone or Androids.

Some developers would lead you to believe you need to download their app to scan QR codes. Spoiler: Your phone can do that with built-in features.