Kana
A few useful phrases a day at your pace, with a quiz every weekend.
Learning
Turns courses, lecture notes and videos into notes and quizzes that make it stick.
Studies a subject with you: it helps you choose a course and plan your weeks, turns lecture videos, handouts and books into notes in your knowledge base, and explains the hard parts another way. It writes practice questions and quizzes from what you've covered and brings back what you got wrong. Review sessions are scheduled as a routine so you get reminded on time. Videos and podcasts are transcribed before they're written up.
Add it, then pick one to start its chat with.
Connect these when it asks. It works without them too.
A few useful phrases a day at your pace, with a quiz every weekend.