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.

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.

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.