I'm trying it out, and am pretty excited. Nice work! This should help a lot with out-of-HSK vocabulary for me (I'm studying for the HSK using traditional materials/anki).

It'd be helpful for me to see the character in a much larger font somehow, perhaps even with stroke order, because I don't know how to write every radical correctly yet and at that font size can't necessarily recognize them all. For example, 蟹 was a new one I got and if I increase the font size, I can figure out there's 角， 刀， 牛， 虫, but not at the font size currently in the app. I also like to practice writing the characters to reinforce (which I'll do on paper, but still need to see what it's made up of).