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Join the Sigma Pi club · CBSE Class 9 to 12

Plans for CBSE Maths, Class 9 to 12

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Every chapter question with its full step-marking scheme and MCQ key, for CBSE Class 9, 10, 11 and 12 Mathematics, and the Route to 95 that works chapter by chapter towards full marks. One plan covers every class. The yearly plan is the best value and is one payment a year, with a 14-day money-back if you're not satisfied. Teachers use the teacher tools free.

Try everything free for 7 days, no card →

More options

Invite a friend

2 weeks of Pro each

Send a friend your link. When they join free and answer 5 questions, you both get 2 weeks of Pro.

Get your invite link

Plans for schools

One class code for your whole Class 9, 10, 11 or 12 cohort. Every seat unlocks every class for your students; the teacher tools (classes, homework, marking, Route to 95 per student) stay free for teachers either way. Yearly licences, renew or cancel at year-end, pay by card or invoice.

Free for teachers: run a class, set homework and worksheets from the free questions (the first step of every chapter) and see each student's Route to 95, with no school licence. Students join with your CBSE class code and keep their free access; one free class of up to 30 students, without AI marking. Start a free class → Both school plans add every chapter question with its step-marking scheme and AI marking, for your students and for you.

Teacher

One teacher · one class of 20

₹2,499/ year
  • Every chapter question and step-marking scheme for up to 20 students
  • No AI marking (the School plans include it)

School

100 students · AI marking

₹39,999/ year
100 student seats
  • Every chapter question and step-marking scheme, Class 9, 10, 11 and 12
  • AI marking of students' written working, step by step against the CBSE scheme: 500 a month, shared by your school
  • Route to 95 and the full common-mistakes library for every student
  • Your class page, homework and marking

School Unlimited

Every student · AI marking

₹1,29,999/ year
Unlimited student seats
  • Everything in School, for every student in the school
  • AI marking: 1,000 a month, shared by your school

Need more than 100 students?

Add-ons for the School plan

  • Extra students: 10 for ₹995 a year (the price of 5). Buy as many packs of 10 as you need, on a School licence or an existing School Essentials one.
  • Every teacher at your school can use School and School Unlimited: there is no teacher limit.
  • A School Essentials licence (no longer sold) includes 5 teacher accounts. Extra teachers for it: ₹1,499 per teacher per year.
  • Add-ons renew with your licence, and the first payment covers only the time left until then. Add them from your school's department page.

Both school plans include AI marking of students' written working from one monthly pool for the school; when it is used up, students mark against the scheme as before.

Pay by card or ask us to invoice your school (30-day terms, PO numbers welcome). Choose Invoice my school under a plan: we email your finance office an invoice in rupees with a link to pay online, with your PO number on it, and your licence starts straight away. How invoices work. Need someone else to approve it? Ask my school to pay.

Try it with one class first

One class of up to 30 students, free until the end of term, so you can see it working before you buy. No card.

Want to talk it through first? For schools: what a school gets, the free teacher tools and how to reach us.

Questions

Yearly or monthly?

Yearly is the best value and is one payment a year. If you pay monthly by card, Indian banks may ask you to approve each renewal (RBI e-mandate rules); if an approval is missed, your plan pauses until you pay again from your account. Checkout takes debit and credit cards, including most Indian cards.

Cancel any time

Individual plans start with 7 free days. We email you about two days before the trial ends. Cancel before then from your account and you pay nothing. After that, cancelling stops the next renewal and you keep access to the end of the month or year you've paid for. Not satisfied? Email us within 14 days of your first payment for a full refund, even if you've used the site. Refund policy

When the no-card trial ends

Nothing is charged, because there is no card. You go back to the free account and keep your progress. Need a few more days? You can add 7 more days once, near the end of the trial.

Invite a friend

Send a friend your invite link: when they join free and answer 5 questions, you both get 2 weeks of Pro.

What stays free?

Chapter notes, formula sheets, official board papers, our sample papers with full step-marking schemes and the first step of every chapter stay free. Homework your teacher sets works whatever your plan, and teachers use the teacher tools free.

What does each feature look like?

See every feature in screenshots, for students, teachers and parents, in the tour of what you get.