I like the keyboard as I can type Bangla  English and Arabic with this single app. The only thing I would love it to have is a rich Arabic word prediction which is lacking in this keyboard. I used to use Swiftkey which has a very good Arabic word prediction feature. Is there a way I can manually add a list of words from a file? If not  please try to add it in the next update. Another thing you can try updating is  sliding on the spacebar to change language rather than long pressing it and then selecting it from list of keyboards. It will save time while working on different languages.
March 06 2016