I remember when Swiftkey first launched on Android, the swipe-to-text was extremely good and the built-in "learning by itself" dictionary worked well too. Of course, it seems like Microsoft at one point bought it, so I don't even have to try it again to understand the current state of it.

I still refer to doing it on iPhone as swyping. The portmanteau has permanently genericized in my brain. Those were the days!