To scan a QR code from a photo on your iPhone, you can scan it using the built-in scanner or a third-party app.
Open the photo with the QR code in your camera roll, select the Live Text icon in the bottom right corner of the screen, and click on the code for a pop-up to appear. Select the Open Link option to visit the QR code destination. If it’s a still image, you can also simply press and hold the code until the pop-up appears and visit the destination by clicking on the link.
If you are using an older version of iOS, you can also try using a third-party app like Google Photos.
Download Google Photos from the App Store.
Grant access to your camera roll.
Select the image with the QR code.
Click on the Google Lens icon on the toolbar.
Press the dots that appear after the scan.
Choose Visit Website to view the QR code destination.
You can get detailed information by following the best practices on how to scan a QR code from an image.