Practice exercises
The app includes four practice exercises for drilling chords. They live in the More tab, under Exercises, and each has its own chapter.
Where the exercises are
Open the More tab and scroll to the Exercises section. There are four: Flashcards, Quiz, Chord Entry, and Identify by Ear. Each opens with a short setup screen where you choose which chords to include, then a Start button. A reminder at the bottom of the section can nudge you to practise at a set time.
Which one to use
Flashcards and the Quiz test whether you know a chord's notes. Chord Entry tests whether you can play a named chord. Identify by Ear tests whether you can recognise a chord by its sound. Between them they cover naming, playing, and hearing.