Original English Keyboard for iPhone
Many words use A, E, I, O, U.
 
It's arranged in alphabetical order, so it's easy to understand.
 
We called “AEI 20Keys Keyboard”
Also very useful with Arrow Keys

About AEI Keyboard
- Only One Push to input Vowel (letter).
- Less than Two Push to input Alphabet. (any letter)
- Input faster with Two Thumbs.

Useful Settings : You can turn off Key Sound from it.


*Please add this Keyboard from iOS Setting and switch "Allow Full Access"
*Some apps doesn’t allow to use.