I made an app for the iPhone, https://itunes.apple.com/us/app/learn-japanese!-hiragana-katakana/id1014955564?mt=8 I work for a Japanese company and I am currently studying for JLPT N1 and couldn't find a good app that teaches not only Kanji and Vocabulary but grammar also. So I made an app and have been adding new lessons as often as possible. I am not fluent yet but I have a Japanese co-worker that helps me create the lessons. If you try my app please let me know what you think at . I would really appreciate any feedback to help me make this a great learning tool for Japanese.