Camera app for the iPhone

I've started using No Fusion Camera on my iPhone 11 a bit and have purchased a subscription for it because I quite like it. It fixes up some of the smartphone photography issues:

 it removes the over-sharpening of the iPhone camera while keeping file sizes small. 

No Fusion innovatively utilises the Apple ProRAW pipeline along with its own calibration and compression algorithms. This produces a more natural and softer image. This format is named HEIF+ in No Fusion.

It has 13, 26 and 52mm digital zoom and supports various aspect ratios, I'm currently into 1:1(square) and has an easy to use exposure compensation 'dial' in the form of a full width slider.

Details here, available here from the App Store.