Dictionaries: JLPT, Japanese-Vietnamese, Vietnamese-Japanese, Japanese-English, English - Vietnamese and Vietnamese - English dictionary.
Quick Search: like a built in dictionary
Jump
Flashcards: Minano Nihongo(Lesson 1~50), intermediate level and highest level's sample.
Voice: Text to speech
※ Quick search ( like a built in dictionary )
※Jumb
※ Text to Speech
※ English - Vietnamese dictionary
※ Change User Interface and fix bug