Har concept, ek prayog.
Where maths comes alive. Every chapter of Class 9 Maths becomes a set of Prayog Labs: experiments you can drag, slide and play with, followed by practice questions with full step-by-step solutions.
Five steps, from curiosity to confidence
Every one of the 87 concept lessons follows the same rhythm, so students always know what comes next.
Warm-up
A quick guess that gets the brain switched on before any rule is shown.
Prayog Lab
Move sliders, toss coins, pour cones or tile a floor and watch the idea appear.
Worked example
A full solution revealed one step at a time, at the student's own pace.
Practice
Questions with hints and complete solutions, plus fresh questions generated every time.
Sprint
A 60-second game with combos, XP and badges to lock the idea in.
All 14 chapters of Ganita Manjari
Each chapter has concept lessons, Prayog Labs, exercises arranged like the textbook's (for example 12.1 to 12.4) with full solutions, end-of-chapter exercises and a printable answer key.
Part 1 Open Part 1
Part 2 Open Part 2
Built for how Class 9 students actually learn
See it before you learn it
99 Prayog Labs turn every rule into something to explore: the midpoint theorem, Heron's formula, tree diagrams, Euclid's algorithm.
Solutions for everything
All 863 questions have hints and complete step-by-step solutions, and every exercise set ends with an answer key.
Arranged like the textbook
Exercise sets follow the book's numbering, so homework and the app line up chapter by chapter.
Games that build habits
XP, ten levels, daily streaks, badges and 60-second sprints keep students coming back.
Their colours, their way
Students pick a colour theme (Sunrise, Ocean, Holi, Forest, Galaxy or Classic), and dark mode is built in.
Progress that travels
Progress saves on its own. A backup file or a short code moves it to another phone or computer in seconds.
Ready for tomorrow's class
- Share one chapter at a timeEvery chapter has its own link, so you can send exactly what the class is studying.
- Teach with the labs on a projectorDrag a vertex, change a radius and let the class predict what happens next.
- Print answer keysEach exercise set ends with all answers and full solutions in one place.
- Exercises follow the bookSets are grouped like the textbook's exercises, with original questions on the same topics.
Safe, simple, and free to start
- No sign-up and no adsOpen it and start. Nothing about the student is sent anywhere.
- Works on any phonePages are light and keep working without internet once opened.
- Several students, one deviceBrothers and sisters can each keep their own progress on a shared phone or computer.
- Backups in one tapDownload a backup file or copy a progress code from "My progress" to keep work safe.
Every lesson is free
Pro adds extra practice and tests for students who want more. Pro is not on sale yet; the prices below are planned.
Free
- All 14 chapters and 99 Prayog Labs
- Exercises and end-of-chapter questions with solutions
- Sprint games, XP and badges
- 10 generated practice questions a day per chapter
Pro
- Unlimited generated practice
- Timed chapter tests with score review
- Explore labs
- Progress across devices and parent reports (planned)
For schools
- Class links and teacher guides
- Projector-friendly labs
- Help getting started with your Class 9 sections
Frequently asked
Does Ganitopia follow the NCERT Ganita Manjari textbook?
Yes. It covers all 14 chapters of Ganita Manjari Parts 1 and 2 for CBSE 2026–27, in the same order, and its exercise sets follow the book's numbering. The questions are written by Ganitopia, so use them alongside the textbook, not instead of it.
Is it really free?
Yes. Every lesson, lab, exercise, solution and game is free. Pro will add unlimited practice and chapter tests later.
Where is my progress saved?
On your own device, in the browser you use. Open "My progress" in the app to download a backup file or copy a progress code, then restore it on another phone or computer.
Does it work without internet?
Once a page has opened, its lessons, labs and questions keep working offline. Only the fonts need a connection.
Can two students use the same phone?
Yes. In "My progress", choose "Add a student". Each student keeps separate answers, XP and badges.
Is Ganitopia linked to NCERT or CBSE?
No. Ganitopia is an independent learning site. Ganita Manjari is a textbook published by NCERT.
Pick a chapter and start an experiment
Start with any chapter. No sign-up needed.
Say hello
Teachers, parents and schools: tell us how you use Ganitopia, what is missing, or ask about class sets.
hello@ganitopia.in