I was looking into thumb-key. What differences are there? I noticed the same layout is available
2. Thumb-key bakes a lot of decisions into the layout. If you're a pure english-speaker then you tend to have a decent variety of layouts available, but as a swede, having to choose between having Å/Ä/Ö available, having convenient access to special symbols, or having convenient access to numbers is a bit of a non-starter, especially when there is no actual conflict in the layout.
Will definitely donate, I'm not pro subscription. Especially not this way, locking in users by waiting for them to learn your keyboard layout and then lock the keyboard behind a paywall.