Practice, 1v1, AI builder, puzzle rush, AI tutor.
Classrooms for your CS course, free during pilot.
Evidence-linked assessments; public access is waitlist-only.
Start free. Upgrade when your course grows.
Every plan can build any question type. Teaching is never paywalled. Paid plans add an unlimited quiz library, Rena hints, AI generation, branding, and bigger roster limits.
Free
For trying it with a class.
- Host unlimited live quizzes & games
- Every question type, from MCQ to full coding challenges
- Save up to 3 quizzes
- 8,500+ curated problems with auto-grading
- Browse community templates
Classroom Pro
For a working instructor.
- Everything in Free
- Unlimited saved quizzes
- Rena hints for students (you control what they can ask)
- AI question generation
- Question sections (custom weighting & timing)
- Clone community templates into your library
- Higher assignment & roster limits
Classroom Ultimate
For power users & departments.
- Everything in Pro
- Educator Copilot: an AI teammate that drafts and builds quizzes for you
- Full branding: your logo, colors & fonts
- Highest assignment & roster limits
Have a coupon code?
Redeem classroom access from your department or pilot program. No checkout.
Schools & departments
Buy seat bundles with separate student and educator buckets, a domain allowlist, and invite codes, and 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 8,500+ problems.