What an exercise looks like, the kinds there are, and what to do when you get stuck.
The two goals every exercise sets, and the way straight past them.
Every icon and badge the app puts on a card, and what each one is telling you.
The map, your own page, and which taps count towards finishing something.
The village your sums build, and the charts that keep the record.
Who is playing, how they get back in, and how progress follows them to another device.
Settings, the tips on every page, and how to tell Maqqii something.