Learning to code
that actually works
Four systems working together: AI courses that adapt to you, quizzes that reinforce knowledge, code feedback that makes you better, and streaks that build habits.
Courses that exist only for you
Type a topic and AI creates a complete course in seconds. Chapters with learning objectives, lessons with code examples, quizzes, and exercises. Wrong answers come back later with shuffled options until everything sticks.
Learn by testing
Multiple choice, true/false, fill-in-the-blank — every course mixes question types. Pick an answer, press Check, and get an instant explanation. No guessing — real understanding.
await?await the coroutine is never executed — you just get the coroutine object back.
AI feedback on your code
Submit your solution and get detailed review — what's good, what can be improved, and why. Not just pass/fail, but real mentoring.
tasks = [fetch(u) for u in urls]
return await asyncio.gather(*tasks)
gather for parallel execution
return_exceptions=True to handle errors individually
Progress you can feel
Daily streaks keep you going, XP and level-ups show your progress, and 169 achievements celebrate milestones. No pressure, but plenty of motivation.