CBSE · Tamil Nadu State Board · Classes 9–10

Your textbook's personal examiner.

Pick any chapter. Get a fresh exam-pattern paper every time you open it, and have your answers marked the way a board examiner marks them. English or Tamil medium.

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113chapters ready
13question types
2boards, 2 languages
₹0during early access
How it works

Three taps from textbook to exam hall.

1

Choose the chapter

Board, class, subject, chapter. Every NCERT chapter for Classes 9 and 10 is already prepared. Samacheer Kalvi chapters are built from the textbook the first time anyone opens them, in under a minute.

2

Take the paper

Twenty questions in your board's own formats: MCQ, assertion–reasoning, case-based, match the following, short and long answer, book-back and more. Tap to answer, or type and get marked.

3

Come back tomorrow

Next visit is a different paper. Questions you got wrong return for review until you get them right. That is how marks move.

Never the same paper twice

A guide book has one set of questions. ChapterAce has a pool.

  • Each visit draws a new 20-question paper from questions you have not seen
  • Options are shuffled, so memorising "B" does not work
  • Mistakes come back after 1, 3 and 7 days until you clear them
  • Finished a chapter? Pro gets a brand-new set written from the same textbook pages
A practice paper in the ChapterAce app
An examiner-style verdict on a typed answer
Marked like an examiner

Stop guessing whether your long answer would score.

  • Every written question carries the marking scheme: the points that earn marks
  • Reveal the model answer and tick what you wrote to score yourself honestly
  • Or type your answer first and get it marked point by point, with feedback on what was missing
  • Explanations quote the textbook, not the internet
Full mock papers

Sit the real paper, before the real paper.

  • A complete paper in your board's blueprint: every section, internal choice, the real time limit
  • Drawn across every chapter of the subject, never the same twice
  • Score by section with a grade band at the end
  • Export any paper as a PDF, with or without the answer key, to print or send on WhatsApp
A timed mock paper in the board blueprint
Built for Indian boards

CBSE and Tamil Nadu, in the language you study in.

📘

CBSE, from NCERT

Science, Mathematics, History, Geography, Political Science, Economics and English for Classes 9 and 10, generated from the NCERT textbooks the board sets from.

🌴

Samacheer Kalvi

TN State Board and Matriculation, in the SSLC pattern with Book-Back questions. Chapters come straight from the Samacheer textbooks.

தமிழ்

Tamil medium

Switch to Tamil medium and the whole paper, answers, explanations and marking scheme are in Tamil, in the textbook's own register.

🚫

No ads, no feeds

Nothing to scroll, nobody calls you, no video upsell. Open the app, take a paper, close it.

📅

Exam countdown

Set your exam date once and the home screen counts down, so every paper has a reason.

⚑

Report any question

Questions are generated by AI from the textbook and checked against it. If one still looks wrong, flag it and a human reviews it.

For teachers

Homework that marks itself.

Create a class, share a six-letter code, and set a chapter or a full mock paper with a due date. Every student gets the same paper. You see who has submitted, their scores and the class average, without collecting a single notebook.

Free for teachers during early access.

KM7P3Q

Students join with a code like this

Pricing

Less than one guide book a year.

Free

₹0
forever
  • First paper of every chapter
  • Mistake review
  • 3 explanations a day
  • Join a teacher's class
BEST VALUE

Pro yearly

₹499
per year · about ₹42 a month
  • Unlimited papers, every chapter
  • New question sets on demand
  • Typed answers marked like an examiner
  • Full mock papers and PDF export
  • Scan your own pages

Exam Pass

₹199
90 days
  • Everything in Pro
  • For the board-exam run-up
  • One-time, no renewal

Pro monthly

₹99
per month
  • Everything in Pro
  • Cancel any time

Schools: ₹49 per student per year, minimum 200 students, with teacher accounts included. Write to iniyarajan86@gmail.com.

Questions

Straight answers.

Where do the questions come from?

From the chapter text of the NCERT or Samacheer Kalvi textbook, the one your board sets the exam from. An AI model writes exam-pattern questions from that text, a second pass checks every answer against the chapter, and written questions get a marking scheme. Nothing is pulled from the internet.

Can the questions be wrong?

Rarely, yes. AI-generated content can contain mistakes, so every question shows its model answer and explanation for you to verify against the textbook, and every card has a Report button. Reported questions are reviewed by a person and regenerated.

My school uses a different publisher's book.

For CBSE that does not matter: the board exam follows the NCERT syllabus, and every private textbook covers the same chapters under different numbers. Use "Find by topic" to pick the chapter by name. For books outside the syllabus, Pro lets you scan a page and practise from that.

Is ChapterAce affiliated with CBSE, NCERT or the Tamil Nadu board?

No. ChapterAce is an independent study tool and is not affiliated with, endorsed by or approved by CBSE, NCERT, the Tamil Nadu State Board or any school.

What happens to my data?

Your email, your board and class, and your practice progress. No ads, no tracking, no selling. Chapter text and, if you use them, your typed answers and uploads are processed by AI providers to generate and mark questions, as described in the privacy policy. You can delete your account in two taps from Settings, or at chapterace.com/delete-account.

When is the iPhone version coming?

Android first, because that is what most students in India carry. The app is built for both, and iOS follows once the Android release is stable.