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

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

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.

Halide users who’ve upgraded their iPhones to iOS 18 are now able to quickly access the advanced camera app directly from their phone’s lockscreen without having to unlock it first. Previously, only the native iOS camera app could be conveniently accessed that way.

iOS 18 has now landed with a host of new software toys, but the biggest one for photographers may be a handy new customizable lock screen trick. You can now replace Apple 's basic Camera app in the lock screen with more powerful ones – like Halide and Moment's Pro Camera.