"JAPANESE 5" is a perfect application for intermediate to advanced Japanese
You can learn Kanji, vocabulary, and grammar of JLPT N1 level by answering
This application is best to prepare for JLPT and to advance your level of Japanese skill.
This application consists of 200 Kanji questions, 200 vocabulary questions and 200
grammar questions. 20 questions will be randomly delivered each time. It’s just
the right volume for a handy study-tool - and you can do it anytime anywhere!
Have fun and your Japanese will be improved before you know it;)