[skicoachapp]

This matches my intuition almost exactly.

Especially the distinction between: paying once to own a version vs paying for an ongoing service.

I think a lot of conflict comes from companies blurring that line after users have already built habits and trust.

The point about security updates vs feature updates is interesting too — that gray area is where many products struggle to be explicit.

[JohnFen]

What I've described is also pretty much the way this worked for all software back in the day.