I will check these out!
I use Anki for Japanese right now - mainly because I found Anki decks for each chapter of Genki 1 which I am working through right now.
Would love any feedback! The Reader app is really unique - no other app provides that kind of kanji-by-kanji reading progress functionality (probably because it took a tremendous amount of work under the hood to get it right).
It's a native iOS app so I would have to start from scratch on Android. I do plan to port it to macOS via Catalyst sometime after the upcoming WWDC which will help some Android users.
I'll note that this is a big pain point for me: although Android users don't pay as much for apps, they help boost word-of-mouth marketing substantially. I see some similar but (tbh) subpar apps get more word-of-mouth online even in recommendations to iOS users just because of the huge signal boost from Android users.