JAccent is an offline Japanese accent dictionary designed for both teachers and learners of the Japanese language. It is a great tool for those who want to improve their pronunciation skills or simply check the meaning of a word. The program offers an extensive database of over 180,000 accents, 12,000 kanji meanings, and over 5,000 opposite words.

One of the most impressive features of JAccent is that it supports multiple languages, including English, Vietnamese, Chinese, Korean, and Indonesian. The program also allows users to contribute to the word's meaning, pronunciation, and accent. Additionally, the app provides audio listening, kanji's handwriting recognition, and does not require an internet connection (except for audio listening).