Your smartphone is full of surprises. There’s an app if you want to use your phone as a magnifying glass or scanner. Tap or click here for hidden apps on your smartphone and how to find them ...

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.

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 are popular ways to scan menus, tickets, and apps. Here's how to do it from your Android phone or iPhone, and what the FCC says about it.

In terms of privacy, QR codes can’t actually store data—they just display it. How much information about yourself you’re giving away depends on the app you’re using to scan.

According to Touch 'n Go, the new feature allows users to scan various non-payment QR codes, including restaurant menus, ...

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.

Making your own QR codes is easy if you have the right app. Embed them with text, links, and even passwords. Use one of these to get started.

China's QR code quarantines rely on low-tech implementation. While some local governments are all in on using these systems, others are ignoring them.