The 2nd popular judgment series, Kanji reading judgment 2 released! (free)
https://itunes.apple.com/jp/app/han-zi-dumi-fang-pan-ding2/id926602791?mt=8
■ 1000 words of how to read kanji that are easy to make mistakes even for adults, seem to be readable but not readable, and embarrassing if not readable
“Kanji reading judgment: embarrassing kanji if you can’t read” is a kanji reading learning app that judges from the normal kanji to the slightly esoteric reading. The reading of Chinese characters and their meanings are also displayed. Increase your Chinese character and vocabulary by doing it many times with the aim of answering all the questions correctly.