Being able to replace the default camera button on the lock screen with a camera app like Halide is a game-changer for iPhone photographers,” professional travel photographer

With iOS 18, users can replace the default camera app on the lock screen with a third-party app. Halide and Obscura — two popular camera apps designed as

OS 18 now lets you replace Apple's basic Camera app on the iPhone's lock screen with third-party ones like Halide –here's how to do it.

It's now even easier to replace your iPhone's default camera app with Halide, a third-party option that offers advanced camera features, such as manual shutter speed and ISO control, histograms and even a mode that claims to strip away almost all of Apple's AI image processing.

Although Halide offers advanced features like manual shutter speed adjustments and a “Process Zero” option that delivers images without any AI processing, accessing Apple’s camera app was always faster thanks to its lockscreen shortcut.