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.

Whether you need to scan a QR code, or you want to create a QR code of your own (for a wifi network, a contact card, or anything else), you’ve got a variety of options to pick from.

They make life easier by letting you access links, download files, or make payments with just a quick scan. But what if the QR code you need to scan is on your phone itself?