A few days ago I started the search for an alternative keyboard to the common gboard. One keyboard that came up was Thumb-key. I find the concept of typing everything with one thumb really interesting. So I gave it a try and am using it from time to time (like right now). But the learning curve feels steep and I start to wonder, if this way of typing will ever come close to typing on a regular keyboard.
Is anybody using Thumb-key on a daily basis, and how fast can you type?
Glad I could help! for bigrams like ou I feel it natural, when the second letter can be started from the point where the swipe gesture from the first letter ended.