I don’t come across completely free kanji apps very often, so when I came across this app I was surprised. I downloaded this app about 30 minutes ago so I don’t have too much experience with it yet, but so far I like it very much. I like that I can pick out all of the kanji I know already.
My only suggestion would be maybe to add the radicals? I learn kanji best by breaking them into their components(radicals)instead of learning the stroke order.
(For example, Instead of learning the 10 stokes that go into “音”, I learned that the kanji for stand, 立, and day, 日, can combine to make 音, which has helped me remember it better than individual strokes. Again, just a suggestion.)
This is a great app nonetheless, I’m very happy I stumbled across it!! 😎