The hints around how letters should be pronounced are a killer feature on their own. I've been on-and-off learning Ukranian, and the expectation that I should magically know how to make heads or tails of Cyrillic is a pretty big oversight. The link to that Peace Corps reference is something I wish I had when starting out, and now that I have a bit of a more solid reference for that sort of fundamental knowledge, I feel like it'll be a lot less frustrating getting through the courses.

Seems weird that these hints ain't readily accessible from the Android app.