QR codes can be really handy. A grid of seemingly random black-and-white squares can hold enough information to store website URLs, contact information, email addresses, pre-defined SMS text messages, and even your WiFi SSID and password.
Put a QR code on your business card, and people can copy all your contact info into their phone in a heartbeat. Post a QR code somewhere in your house, and guests can use it to instantly sign on to your Wi-Fi network.
You used to need a third-party app to scan QR codes, but with iOS 11 Apple built it right into the camera app. It couldn't be easier to use.
How to scan a QR code
- First, open the Camera app.
- Then, point the camera at a QR code so it can see it clearly.
That's it! A notification should pop up with an action based on the QR code scanned. If it contains a Wi-Fi SSID and passcode, you can join the network with just a tap without the need for typing or tinkering with the Settings menu. If it contains contact info, you'll be prompted to add the person to your iPhone's Contacts.
