Why is iOS SwiftKey different than Android? Missing amazing features

So I switched to iPhone after 6 years using an android phone. I installed swiftkey on ios noticed that the ios swiftkey app is missing some mandatory (imo) features which are present in android version.

Features like resizing keyboard, long press for all symbols and numbers (numbers in first row, other symbols like ;()!%_= etc. underneath), a comma on the left side of space button, long press duration and many more

Why is it like this and are there any official statements on this one? I just love the android swiftkey and don’t like swiftkey at all on ios.

Thanks