Why this exists
There are a lot of great apps out there, and plenty of them are better than mine at the one thing they do. I didn't build this to beat any of them. I wanted the things I actually use in one place: a flashcard deck, a bin for the words I keep getting wrong, short stories with readings and a quiz, and a recorded voice for all of it.
None of that is hard to code, and none of it should cost a subscription. So it's free, and it runs offline. The one thing that needs the internet is Discover, the short videos: they stream, so that tab wants a connection and a free account. Studying never does.