[jimmaswell]

I remember reaching a really high speed on the keyboard of the original iPod Touch. It actually did feel like touch typing - I didn't really have to look at the on-screen keyboard. I can't pin down exactly what's been missing from newer keyboard apps. Something about the ergonomics and UI came together just right.

[jazzyjackson]

original iPod touch having a 3.5" screen probably had a lot to do with it, with thumb typing a smaller keyboard could be better - finer movements per keystroke. Modern iPhone 14 is 6.1"