iOS and macOS don’t “correspond” in any way, shape, or form. Completely different releases. Their release windows tend to be close (by design) but there ‘s no “correspondence” here.
The base iPhone’s digital som is pretty much perfect for its target audience, to be honest. These cameras are fantastic already, optical zoom is indeed a pro feature.
That’s Vista. And there’s no contest whatsoever. They’ve never been able to again achieve the perfect balance of elegance and functionality that Vista’s UI had.