A free program for Android, by sourcefixer.

Khmer Keyboard is an easy-to-use keyboard for Khmer and English language. It allows users to write in their native language and English. This keyboard is designed for users who want to write and speak in their native language. It also provides a very convenient interface to type and speak in English. 

The keyboard is equipped with a speech-to-text function, which is very useful when you want to type in your native language but don’t know how to pronounce it.

You can use it to write emails, post on social network like Whatsapp, Facebook, Twiter, and professional letters, messages through Khmer Keypad.

Now no need to write long messages, text, and emails. Just speak and that will be converted into text.