Stuck? Your tutor asks the one question that gets you unstuck.
FlowPrep is an AI tutor for JEE and NEET. It reads your rough work and guides you to the answer.
FlowPrep is an AI tutor for JEE and NEET. Polaris, your tutor, reads your rough work and guides you to the answer. That's Socratic learning.
No live classes. No ads. Free to start, no card needed.
JEE Main 2026 · Physics
Kinematics
A gas balloon is going up with a constant velocity of 10 m/s. When this balloon reached a height of 75 m, a stone is dropped from it and balloon keeps moving up with the same velocity. The height of the balloon when the stone hits the ground is _______ m. (Take g = 10 m/s²)
- A85
- B150
- C129
- D125
Rough work
- Crossed out: 75 = 5t², so t = 3.9 s
- Crossed out: 75 + 10 × 3.9 = 114
- y = 75 + 10t − 5t²
- 5t² − 10t − 75 = 0, t = 5
- Balloon: 75 + 10 × 5 = 125
Solved
Polaris, your AI tutor
Polaris, your AI tutor: I'm right here. Tell me what you've tried, or where it stopped making sense.
You: I got 114, but that's not one of the options.
You: It falls 75 m from rest, so I used s = ½gt².
You: No, it was moving with the balloon. But how do I write its height now?
You: So it starts at 10 m/s, going up.
No more looking up solutions.No more waiting to clear up doubts.No more boring study sessions.
How it works
Read
Every chapter starts with a full lesson.
Every chapter starts with a full lesson. Reading it opens the practice that goes with it.
Train
The tutor asks the one question that gets you unstuck.
The tutor reads your rough work, asks the one question that gets you unstuck, and guides you to the answer.
Watch it light up
Reading adds stars to your sky. Practice brightens them.
Reading adds stars to your own night sky. Practice brightens them, from not started to mastered.
An example sky.
- Not started
- Needs work
- Getting there
- Strong
- Mastered
Every star is a topic. Every line is a link.
Your sky is a map of the whole JEE and NEET syllabus. Each star is one topic. Each line shows what a topic builds on. As you learn, light flows along those lines, from the topics you have lit to the ones they unlock.
Read the sky
- One star for every topic. Physics, chemistry and maths for JEE. Physics, chemistry, botany and zoology for NEET.
- Lines show what builds on what. The lines come from the questions themselves. When questions on one topic keep needing another, the two are joined, so you always see why a topic comes next.
- Light flows as you learn. Read a lesson and its star appears. Practise and it brightens, until it shines as mastered.
- Find the root of a problem. Stuck on a topic? Follow its lines back to the one it builds on, and fix that first.
Point at a star, or tap it, to trace its chain.
- Not started
- Needs work
- Getting there
- Strong
- Mastered
- Builds on
An example sky, up close.
Lessons made for JEE and NEET.
Every chapter starts with a full lesson, written for the exam you are preparing for. It begins with the basics, builds one idea at a time and shows you the traps exam questions set. Your fundamentals get solid before the questions get hard.
A real diagram from the lessons. Try it.
Drag the arrow, or use the slider, to change the launch angle. The dashed path is the throw at 90° minus your angle: it lands in the same place, and the two become one at 45°, the farthest throw.
An example of asking Polaris inside a lesson.
Fundamentals first
Each lesson starts from the basics and climbs to exam level, so you know why a formula works, not only how to use it.
Ask Polaris, right there
Stuck on a line? Select it and ask Polaris inside the lesson, or ask about any diagram. Your doubt is cleared then and there, with nothing left for later.
Diagrams you can interact with
Slide, drag and play with the diagrams in every chapter, and watch the idea work in front of you.
Built to put you in flow.
Flow is the state where time disappears and hard work feels easy. Athletes call it being in the zone. It happens when a challenge sits just above your skill: hard enough to hold all your attention, not so hard that you panic.
FlowPrep's adaptive engine knows your level in every topic. From thousands of questions, it picks the one most likely to put you in flow right now. Not too easy. Not too hard. Solve it and the next one stretches you a little further. Struggle and it steps back to rebuild the base first.
How the engine chooses your next question. An example.
- Too easy for you nowA ball is dropped from 20 m. How long does it take to land?
- Picked for youA stone is dropped from a balloon rising at 10 m/s. Where is the balloon when the stone lands?
- Too hard for you nowA rod slides down a rough incline while it rotates. Find its angular acceleration.
- No wasted hours
- No time spent on questions you already know, or on ones you can't touch yet.
- Longer, deeper focus
- In flow, two hours of practice feel like twenty minutes, and you remember more of it.
- Steady climb to exam level
- Every question is a small step up, so JEE and NEET level stops feeling like a wall.
What Polaris knows about you
- Mastered
- Units and dimensions
- Getting there
- Relative motion
- Often slips on
- The sign of g when a body moves up
- Last stuck
- Two days ago, on a projectile question
- Clue 1What is the stone's velocity just before it is dropped?
- Clue 2Seen from the ground, it is moving up with the balloon. Write its height with that start.
- SolvedYou found 125 m on your own.
Polaris already knows what you know.
Polaris is your AI tutor. It has followed every topic in your sky, so it knows what you have mastered and where you tend to slip. It sits beside you while you solve, reads your rough work and follows how you are thinking.
Knows you
Your strong topics, your weak spots and the mistakes you tend to repeat.
Follows your thinking
It reads your steps and spots the exact line where your idea went off track.
Gives the right clues at the right time
One clue when you need it, a sharper one only if you need more, until you crack it.
You finish it yourself
No giving up and no looking up the solution. You solve it on your own, and that is what stays with you in the exam hall.
Your weak spots turn into workouts.
FlowPrep watches every try. When a topic keeps slipping, it becomes a workout, set for you automatically: focused questions on exactly what needs fixing, a little easier to start, until your last few tries come out strong.
Relative motion
Set because two of your recent tries here needed a lot of help.
Short, focused questionsDone when your last five tries come out strong
Every past paper question, one step at a time.
Some past paper questions are too big to climb in one go. So FlowPrep builds easier versions of them, each one testing a piece of the same idea. Miss a past paper question and you can try a simpler one first. Solve the steps and the real question is suddenly within reach. When you're ready, harder versions stretch the same idea further.
- Step 1The idea it builds on
- Step 2The key idea on its own
- Step 3A bridge to the full problem
- The real oneThe past paper question, as it was asked
Test yourself against the real thing.
Mock tests
A full JEE or NEET paper, or one subject of it, on the real exam's clock and marking. Every question is one you have never seen before, so your score tells you where you really stand.
Weekly contests
Every weekend, compete with students who have reached the same point in their journey as you: a knowledge map like yours, the same class year, a similar number of questions solved. A fair race, every time.
Built for studying on your own
Everything you need to keep going on your own: revision that remembers how you solved, a notebook for mistakes, and tools for long study days.
Your revision
Every solve is saved. If you got stuck, its note says where and what helped. A few come back each day for a quick recall.
An example.
A river flows at 2 m/s. A swimmer whose speed in still water is 4 m/s wants to land at the point directly opposite. The angle she must aim upstream, measured from the line straight across the river, is:
Your path
- Where you stalledYou used the tangent and got 26.6°.
- The tutor's nudgeThe tutor asked which part of your 4 m/s has to cancel the current.
- Your steps
- You wrote the part along the bank as 4 sin θ.
- You set 4 sin θ = 2 and got θ = 30°.
Three days later
A river flows at 2 m/s. A swimmer whose speed in still water is 4 m/s wants to land at the point directly opposite. The angle she must aim upstream, measured from the line straight across the river, is:
Mistakes that stay fixed
Keep a mistake with your own note, try it again later and mark it fixed. FlowPrep also finds weak topics and sets a workout on them.
An example.
What kind of mistake
Why did it go wrong?
I took the river's speed as across the river, not along it.
Rule for next time
Draw both arrows before writing any equation.
Setup: 4 of the 9 you sorted.
Weakness closed: Relative motion and projectiles. That's real progress.
Study tools
A focus timer, sounds like rain and Lofi, your study hours by subject, and a countdown to your exam.
An example.
Focus block 1 done. Take 5 minutes.
- Rain
- Lofi
- Noise
- Forest
- Cafe
2 h 40 min
Time by subject
- Physics1 h 10 min
- Chemistry50 min
- Maths40 min
84 days to your exam
Stops at 10:30 pm with a chime
Your first 14 days are free
Every new student starts with 14 days of Standard, and you don't need a card to begin. After that there are two plans, and the only difference is how much time you get with the tutor.
Coaching can only take you so far.Toppers aren't made. They make themselves.
With the power of AI, it's your turn to take control and rise to the top.
Questions
What is FlowPrep?
FlowPrep is an AI tutor for JEE and NEET preparation. It has a full lesson for every chapter with diagrams you can interact with, Polaris, an AI tutor that knows your level and gives you the right clues at the right time, adaptive practice that picks the question most likely to put you in flow, workouts on your weak topics, easier step-by-step versions of past paper questions, revision, a mistake notebook, full mock tests and weekly contests. Your progress shows as a sky, with one star for every topic in the syllabus.
What is the best AI tool for JEE and NEET preparation?
FlowPrep is built to be the most complete AI tool for JEE and NEET preparation. Most AI apps answer a doubt and stop. FlowPrep teaches the chapter, picks your next question from thousands to match your level, sits beside you while you solve it, turns your weak topics into workouts, and tests you with full mock papers and weekly contests. You learn to solve it yourself, which is what counts in the exam hall.
Can I prepare for JEE or NEET without coaching?
Yes. FlowPrep gives a student studying at home what a good coaching class gives: lessons that build the fundamentals, practice at the right level, a tutor for every doubt the moment it comes up, regular tests and a clear picture of progress. Students who go to coaching use it for the hours after class.
How does FlowPrep choose my next question?
Its adaptive engine tracks your level in every topic. From thousands of questions it picks the one most likely to put you in flow: hard enough to stretch you, not so hard that you get stuck for good. Solve it and the next one asks a little more. Struggle and it steps back to rebuild the base.
Does FlowPrep have past paper questions and mock tests?
Yes. Practice includes questions asked in past JEE Main and NEET papers, with easier versions of hard ones that build up to the real question step by step. Mock tests give you a full JEE or NEET paper, or one subject of it, on the real exam's clock and marking, with questions you have not seen before.
Are there live classes?
No. You read each chapter's lesson, then work the problems yourself. When you're stuck, the tutor guides you to the answer.
Will the tutor just give me the answer?
It guides you to it. When you're stuck, it asks the question that gets you moving, and keeps going until you've solved the problem yourself. If you've worked through every nudge and still want the full solution, you can choose to see it.
How is it different from a general AI chatbot?
It's made for JEE and NEET. FlowPrep picks your next problem from what you've already learned, and the tutor reads your rough work and knows the common traps in each question, so it can point at the step that went wrong. Then it guides you until you solve it yourself.
Which exams is it for?
JEE and NEET. Physics, chemistry and maths for JEE Main. Physics, chemistry and biology for NEET. How the tutor works for JEE Main
Can I use it alongside coaching?
Yes. Coaching covers the lecture. FlowPrep covers the hours after it, with lessons to read, problems to work, revision, and a tutor beside you when you get stuck.
Does it work on my phone?
Yes. It runs in your phone's browser and can be added to your home screen like an app. Start a session on your phone and pick it up on a laptop.
Where do the questions come from?
Practice includes questions asked in past JEE Main and NEET papers, and questions FlowPrep writes on the same ideas, such as easier and harder versions of past paper questions. Each question's answer comes from the bank, and the tutor works from it.
What does it cost?
It's free to start, and you don't need a card. After that there are two plans. Both have every lesson, unlimited practice, revision and the tutor, and one gives you more time with the tutor. See the prices
I'm a parent. Why should I trust it?
When your child is stuck, the tutor asks the questions a good teacher would ask, until your child works it out. There are no sales calls. It's free to start, and you don't need a card.
Is it safe for students under 18?
There are no ads in the app, and we don't sell anyone's data. The picture FlowPrep builds of a student's strengths and gaps is used for their learning. If a student types something that suggests they may be in danger or distress, the tutor shows them helplines straight away. You can delete your account from Settings. How we protect students under 18
Start with your first chapter.
Your first 14 days are free.