Did you know?
The observable universe is ~93 billion light-years across — and it's still expanding.
Class 11 & 12
Biology is half the NEET paper. All 28 NCERT chapters turned into small easily understandable lesson cards with helpful illustrations. Ask AI to clear any doubts you have.
Trusted by 6,500+ students preparing for NEET
How your child learns on Kelvi
These are real cards from the Morphology of Flowering Plants chapter, exactly as a student sees them. No lecture to sit through. Every card asks for something back.
A leaf is born at a node, with a bud tucked into the angle it makes with the stem. That bud will later grow into a branch.
Lamina: the green expanded blade, where photosynthesis happens. Petiole: the stalk. Leaf base: where the leaf joins the stem.
Card 16 of 82 · Morphology of Flowering Plants
Ask AI
Every card has an Ask AI button. Your child asks in their own words and gets a patient, step-by-step answer, as many times as they need.
Leaderboard
Every question answered earns points: 10 for an attempt, 20 for a correct answer. The leaderboard turns those points into a rank among NEET students on Kelvi, for the day, the week and the month, and you can open the app and see it too.
Rahul K.
2,840
Priya S.
2,650
Sneha R.
2,420
Your child
1,180
Your rank: #37
Keep going! 🚀Sample data
How Kelvi is different
A coaching batch teaches at one speed to a hundred students. Kelvi sits with one student and makes them do the work.
Class 11 and 12, the full NCERT Biology syllabus
Physics + Chemistry + Biology
Prices in Indian rupees. Payment is taken after registration, through Razorpay or Google Play. Every new account starts with a free trial, and the trial needs no card.
Questions parents ask
Kelvi is where the practice happens. Many families use it alongside school or coaching so that every chapter gets solved, not just heard. Students who self-study use it as their main course.
No. The AI tutor explains the concept, gives hints and checks reasoning, but it will not reveal the answer to a question until your child has submitted an attempt.
Everything: all 32 Biology chapters, the AI tutor, previous-year questions, the leaderboard and progress tracking. No card details are needed to start.
Yes. All 32 NCERT Biology chapters from Class 11 and Class 12 are included, in syllabus order.
Yes. The Biology plan unlocks Biology for good. The NEET Bundle covers Physics, Chemistry and Biology together at a lower combined price, and you can upgrade from inside the app.
Any phone, tablet or laptop with a browser. On Android and iPhone it installs to the home screen and opens like an app.
Register in a minute. Every chapter, the AI tutor and the leaderboard are open from day one.
Start your 14-day free trial