Khmer, the official language in Cambodia was mad hard to text because of its extensive characters. This language of the Khmer people has a syllabic alphabet in which each consonant has two form. Consonants are all the non-vowel sounds, or their corresponding letters: A, E, I, O, U and sometimes Y.
The modern Khmer uses 33 characters. Because there are many characters used, an app was made to converse faster. The developers made this app for iPhone users and allowed access to more advanced keyboard. It allows the new users to type 40 words per minute, compared to just 28 words per minute using a regular smartphone keyboard.
The majority of downloads come from Cambodia , America, and Canada. it has great reviews and five star rating in Cambodia. "After one week in the app store, Khmer Smart Keyboard was the most downloaded free app in Cambodia. It now sits at number nine, one place behind YouTube." (phnom penh post)