Mobile version card scheduling out of sync?

The desktop version has has many good updates and fixes. Those changes do t seem to be present on Mobile.

Is iOS version dead or will it get updates like the desktop version?

The AnkiMobile app is still in active development. AnkiMobile version 26.10 beta was made available for testing a few weeks ago.

I’m not aware of any recent changes that would make your scheduling significantly different between the two platforms. So if that’s your primary concern, it’s probably due to something else.