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, ...

Posts from this topic will be added to your daily email digest and your homepage feed. You don’t need an app for this —your phone can do it already. You don’t need an app for this —your phone can do ...

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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.

Rather than have a guest select your Wi-Fi network and then enter a fiddly password, just make them a QR code their iPhone can read. Here's how to do it. You wouldn't ...

To generate and share a WiFi QR code on an iPhone running iOS 18, open the Passwords app, select the Wi-Fi option, choose your network, and tap Show Network QR Code ...

Ever since I installed a barcode-scanning app on my phone, I see QR codes everywhere—so naturally I wanted one of my own. If you're a barcode-scanning fool, the QR code to the left links to my ...