I'm not confused, I just don't think messages.app being separate from iMessage is relevant. I acknowledge it's technically correct. I was aware messages.app and

I'm not confused, I just don't think messages.app being separate from iMessage is relevant. I acknowledge it's technically correct. I was aware messages.app and iMessage are separate things, but I think it's fair to say iMessage is the default preferred communication method. If one iPhone messages another iPhone they will use iMessage, without having to do anything. If an iPhone messages an android, it will try iMessage, realize it can't use it, and fall back to SMS. I think therefore it's fair to say iMessage is the default.