David Chien
1. Landscape only, so not as easy to use on a smartphone held in portrait mode. 2. Kanji presented and tested out of order versus standard joyo kanji order. (E.g. 上、下 rather than百、千). A bit like learning the alphabet out of order. 3. Forced to download more data for each chapter. Why not have all iin one store download? 4. Forced to install a Japanese keyboard. Can't convert romanji. 5. Very picky kanji drawing test - can't see the line drawn clearly because finger blocks view as one draws.
Hazel Kazooskis (Indie Queen)
This has been very helpful in reinforcing my learning. I don't mind landscaping mode. And the kanji writing practice can be temperamental but it helps me focus and memorize the kanji a bit more, actually. (Currently finishing college course Japanese 1.)
Rosario Herrera (Pinkvali)
It's a nice app without interruption by ads. I like the exercises of drag in. Just one thing... there is a mistake when doing the exercise for 男 and 女. It marked me wrong when I put 男 in the man's pic and 女 in the girl's... I'm pretty sure I wasn't wrong lol!!