Dvorak is an alternative to Qwerty. It is a keyboard layout designed to minimise movement, and make typing as easy and painless as possible. The idea behind it is to have the most commonly typed keys under the fingers, and make it as easy as possible to type common words and combinations of letters.

Features:
Best android app available for dvorak in landscape & portrait mode.
A keyboard designed for speed typing.
Letters are arranged in order of frequency in English for faster typing.