Learn Japanese Hiragana, Katakana, or Kanji with flashcard quizzes.
I use this on every device I have, and the Chrome app is one of the better incarnations it has, smoothness-wise. It lets you sort by grade level, and choose how you want to quiz yourself. Thanks devs!
What I like about it is that it is simple to use and quick, making it more fun to use.
It was really helpful for me because it shows you the kana and kanji then keeps on reviewing it and if you get one wrong it reviews it more and more until you get the hang of it. The only problem is that in the kana, it shows the kana for Wi and We which are outdated and are not used in modern Japan. But overall, this app is great for learning kana & kanji!
http://studykanji.net/
https://zmyaro.com
http://kanji-z.appspot.com/
http://studykanji.net/
http://www.improvingmedia.com/
Batkhongor Chagnaa
https://flash-card.pdfwork.com/
Ayman Eltemmsahy
http://kanji-z.appspot.com/