Practice, 1v1, puzzle rush, AI tutor.
Classrooms for your CS course, free during pilot.
Agentic assessments (beta). Join early access.
Every plan can build any question type — teaching is never paywalled. Paid plans add an unlimited quiz library, exports, branding, AI generation, and bigger limits.
For trying it with a class.
For a working instructor.
For power users & departments.
Have a coupon code?
Redeem classroom access from your department or pilot program — no checkout.
Buy seat bundles with separate student and educator buckets, a domain allowlist, and invite codes — seats are only consumed when someone redeems. We'll size it to your program and handle billing directly.
Every plan, including Free, can author any question type.
Month-to-month or yearly. Export your data whenever you like.
Plagiarism-resistant runs, live progress, auto-grading on 10,000+ problems.