Teacher-led calculus practice
About Calculus Circus
Practice-first skills for AP and introductory calculus.
Free to try. Full access is one flat annual fee with no automatic renewal.
Why Calculus Circus exists
Calculus asks students to reason about limits, derivatives, and integrals — but fluency with the underlying skills is what makes that reasoning possible. Many classes do not have time to drill every pattern students need.
Calculus Circus is where students practice those skills until they stick: short sets, instant feedback, and pathways organized the way the course is taught.
Teachers use it to see who is practicing and where students stall — without replacing your instruction.
Calculus Circus is operated by Calculus Circus LLC, a Maine-based, teacher-led company.
Who it is for
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For students
Sign in, join a class, and follow skill pathways with instant feedback on every problem.
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For teachers
Create classes, invite students, and assign seats. See progress across skills in one place.
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For schools
FERPA-aligned. Student data is not sold or used for advertising. See our privacy policy for how data is handled.
What you get with full access
- Over 50 skills available with instant feedback
- Explanations and reminders of key ideas throughout
- Clickable features for graphing practice
- Full set of review cards for year-end reminders
- Detailed progress tracking that can be shared with your teacher
- Teachers can create classes, manage rosters, and view skill activity
- One flat, annual fee with no automatic renewal and no automatic charges
- No stored credit card information. FERPA protected data privacy
$30 for one year of full access — no auto-renewal.
What makes us different
- Practice-first. Built around doing problems, not watching lectures.
- Instant feedback. Wrong answers are learning moments, not dead ends.
- Teacher-aware. Classes, rosters, and progress teachers can actually use.
- Privacy-first. No ads, no selling student data, and a FERPA school-official model.
Ready to try a skill?
Start a sample skill from the home page, or open a topic hub. Sign in if you want Calculus Circus to save your place and make your learning visible to a teacher.
Teachers: how seats and pricing work
Student data is used only to run the service. We do not sell data or use it for advertising.
Schools may request a data privacy agreement — contact us through our contact page.