Lens Swapping Apps

Is there an app solely for swapping between lenses on the iPhone 12 Pro Max so that the native apple camera app can still be used.

Most third party apps have the feature to swap lenses but only in conjunction with their own camera photo processing app which overrides the apple app.

I've tried a well known third party app for macro photography but the results are very disappointing compared to the native apple app.

I get much better results using a macro lens over the main camera lens and digitally zooming 2.4x with the native apple app than fitting the macro lens over the iPhone 2.5x camera lens in conjunction with the third party app. It is such a pity that apple don't build a dedicated lens swapping feature into their camera app.

Any help or advice would be appreciated just in case I'm doing something wrong