DOTKey is an exciting new way to type. Unlike traditional keyboards with their “one size fits… nobody” approach, DOTKey offers a user-friendly experience that adjusts to your hand instead of forcing you to adjust to it. With DOTKey you can type quickly and accurately–even with one hand–without needing to look at the keyboard as you type.
iOS
https://apps.apple.com/us/app/dotkey/id1352049564
Android
https://play.google.com/store/apps/details?id=com.dotkeyboard.android_dotkey&hl=en