The vast majority of apps, or at least data consumption, will not fit the shape of "fitness tracker". Budgeting, emails [1], workout routines - those will fall into a non-generative bucket of applications.

I still purport that in the future, most applications and screen time will fall into a generative AI bucket: creating media, writing code, watching videos, playing games, searching for information, etc. I wouldn't even be surprised if our personal images and videos get somehow subsumed and "enriched" with AI.

[1] Well, email might fall into a non-generative bucket. There are already tools that purport to both read and write your emails for you. I'm not quite sure what to make of those.