Adaptive practice that meets you where you are. 1,600+ original questions, an AI tutor that never judges, and a predicted AP score that updates as you improve.
Start Practicing FreeYou do practice problems, but you have no idea if you're actually improving. You might be repeating topics you've already mastered while ignoring the ones dragging your score down.
Mastery tracking shows you exactly what you know and what you don't — by unit, by topic, down to the individual skill. No more guessing where to focus.
Textbook problems don't adjust to your level. You breeze through the easy ones and get stuck on the hard ones with no middle ground.
The adaptive engine selects questions at exactly the right difficulty for you. As you improve, the questions get harder. If you struggle, it steps back. You're always challenged — never overwhelmed.
You study for months, but the first time you find out how you'd score is when you sit down in May. By then it's too late to fix anything.
Your predicted AP score (1–5) updates in real time as you practice. You can see exactly where you stand today, what you need to work on, and how close you are to the next level.
See your predicted AP score front and center, with a full breakdown of mastery by unit. The "Recommended Next" section tells you exactly where to focus to improve the fastest.
Every question is exam-authentic with a full worked solution. When you get one wrong, you'll understand exactly why and how to fix it.
Questions span Level 0 (foundational) to Level 6 (competition-level). The adaptive engine picks the right level for you automatically.
Stuck on a problem? Ask the AI tutor for a hint or a full explanation. It's like having a patient teacher available 24/7 who never judges.
Type your free-response work and get instant AI-powered grading with per-part scores and specific feedback — just like a real AP reader.
Watch your predicted score (1–5) climb as you master topics. Know exactly where you stand before exam day — no surprises.
Practice on your laptop, tablet, or phone. No app to install — just open the browser and start. Study from your desk, the bus, or your favorite coffee shop.
Choose any unit or topic from the AP Calculus curriculum. Start with your weakest area or let the "Recommended Next" section guide you.
The adaptive engine tracks your accuracy, streaks, and difficulty level. Every question is selected to push you just enough — not too easy, not too hard.
As you master topics, your predicted AP score updates in real time. Track your progress from Beginner all the way to a predicted 5.
No credit card required. Just sign up and start practicing. You'll see your first predicted AP score after answering just a few questions.