NCERT-aligned · Classes 8–12

StaxED is the coaching institute in the student's pocket, and the report card in parent's.

Ten ways to learn every chapter, and one number that says they're ready. For the student: smart textbook, notes, slides, flashcards, mind maps, quizzes, PYQs, audio, video, and an AI tutor on every page. For the parent: a readiness score that updates daily, a report every Sunday, and a heads-up the moment something slips.

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No account needed First chapter of every subject free Payments by Razorpay
The problem

You've been paying for marks. You've been getting silence.

A student and a parent need very different things from the same app. So StaxED is two products sharing one spine: the student gets the tools, the parent gets the truth.

For the student

Everything a chapter needs, in one place.

One teacher, one speed, forty students, so the doubt never gets asked. The syllabus feels endless. It's 10pm, the doubt is now, and the only thing available is the textbook.

  • Ten ways into every chapter, read it, watch it, hear it, map it, drill it, test it.
  • An AI tutor on every page that already knows the chapter you're on. Available at 10pm.
  • Audio and video in English, Hindi and Kannada, so revision fits into a bus ride.
  • Streaks, goals and certificates that make coming back tomorrow the easy choice.
For the parent

Proof it's working, long before the result.

Thousands per subject per year, and no evidence any of it is landing. The first honest signal is the report card, and by then the term is gone.

  • A 0 to 100 readiness score per subject, recomputed every day from real study data.
  • A digest every Sunday morning, hours, chapters, quiz scores, the weak topic, what to say.
  • Alerts while it's still fixable, a score drop, three quiet days, a streak worth praising.
  • Set a test yourself from any chapter, and see how they did question by question.
Learn your way

One chapter. Ten ways to make it stick.

Visual learner? Start with the mind map. Learn by listening? Play the podcast on the bus. Cramming tonight? Slides and flashcards. Same chapter, ten doors in, click any one.

Smart textbook

The real NCERT chapter, with a summary of every section in the sidebar.

app.staxed.in
Smart textbook in StaxED: The real NCERT chapter, with a summary of every section in the sidebar.
Smart textbook and AI tutor

The doubt gets solved at 10pm. Not “in the next class.”

The tutor sits inside every chapter, so it always knows what they're studying. Select any line and ask about that line. It never judges, never tires, and stays on the syllabus, a tutor rather than a chatbot playground. And it pushes back: “Now try it yourself” instead of handing over the answer.

Select any line, ask about it Every conversation saved, per chapter Scoped to their class and chapter Sensible daily limits

AI features are subject to fair-use limits.

Smart TextbookMoving Charges and Magnetism12 / 28

4.2.2 Magnetic Field, Lorentz Force

The magnetic force on a moving charge is always normal to both the velocity and the magnetic field, so it can turn the charge but never change its speed.

This has two immediate consequences. A charge at rest feels no magnetic force at all, and a magnetic field does no work on a moving charge. Both follow from the vector product, and both are worth checking against the definition before moving on.

Let us suppose that there is a point charge q moving with velocity v and located at position r, in the presence of both an electric field E and a magnetic field B. The force on this charge is the sum of an electric part and a magnetic part.

The unit of magnetic field follows from the same expression. If a charge of one coulomb moving at one metre per second normal to the field feels a force of one newton, the field is one tesla. The tesla is a large unit, which is why the gauss, equal to one ten-thousandth of a tesla, still appears in tables.

Your language

Concepts land hardest in the language you think in.

Every chapter has an audio lesson and a video walkthrough in English, Hindi and Kannada, built for families where school happens in English but understanding happens at home. Press play, this is a real StaxED chapter podcast, not a demo reel.

0:00--:--

Sample chapter podcast · English

Listen like Spotify

Every chapter as audio, with speed control. Revision on the bus, no screen needed.

Watch it explained

Chapter walkthroughs in all three languages, for the concepts that need showing.

Formulas that render like a textbook

Maths and science notation is typeset properly, not a broken webpage with symbols missing.

The parent portal

Finally, proof. And a heads-up the moment they slip.

A live dashboard for each child, with a 0 to 100 exam readiness score per subject, whether they are ahead or behind the pace the year demands, and an alert the moment something slips.

A score you can actually trust

Readiness is not a vanity number. It is computed every night from four things: how much of the syllabus is covered, how quizzes are going, how recent the work is, and how consistent it has been. It moves slowly on purpose, it rewards steady work rather than one panicked weekend.

Coverage
35%
Quiz mastery
35%
Recency
15%
Consistency
15%

How the four components are weighted in the readiness score.

The real parent portal, per subject. “Behind pace” is the sentence no report card sends you in September.

  • A digest every Sunday morningHours, chapters, quiz results, the weak topic, the readiness change, plus two or three things worth actually saying to them.
  • Alerts while it's still fixableA quiz average that drops, three quiet days, a streak worth praising. One email a day at most, so the important one never gets buried.
  • Topics, never transcriptsYou see what they keep asking the tutor about and how often. You never see the conversation, no endpoint exposes it.
Open a free chapterSee what it costs
The needs-attention panel flagging a chapter for revision, with a one-tap option to assign a test on it

It turns “go study” into something specific: the chapter that needs revision, with a test you can set on it in one tap.

Staying in the habit

The part every study app gets wrong: coming back tomorrow.

Content doesn't fail students. Consistency does, so the boring, essential part is designed as carefully as the chapters.

Streaks

Milestones at 7, 14, 30, 60 and 100 days.

Goals and real rewards

Agree a weekly goal and a reward that matters. Both of you watch the same bar fill.

One daily question

Picked from the topics they keep getting wrong.

Certificates

Finish a subject, earn something worth showing off.

Why we built it

StaxED isn't more content. It's a system.

Content is everywhere. YouTube has explanations, PDFs have notes, random apps have quizzes. Content was never the problem. The problem is that none of it is connected, none of it is structured, and none of it knows what chapter your child is on.

One chapter, one place

Open the app, pick the chapter, and everything needed to learn it, revise it and test on it is already there. No switching, no lost place.

Built for the student, not the syllabus

A lot of edtech is designed to impress educators. Every tool here exists because a student needs it. If it doesn't make studying easier or faster, it isn't in the app.

Exam-relevant from day one

Board exams were the starting point, not an afterthought. The PYQ question bank, the chapter quizzes and the revision flow are all built around what the paper actually asks.

A system takes a student from first read to exam ready, chapter by chapter. That is the difference, and it is the whole reason StaxED exists.

The whole syllabus

Not “important questions.” The whole syllabus.

Mapped to the NCERT books your child actually studies from, so chapter names match their textbook, in the order their teacher teaches them.

5Classes covered, 8 to 12
10Ways to study each chapter
350+Chapters, growing weekly
3Languages for audio and video
Classes 8–10NCERT
MathematicsScienceHistoryGeographyCivicsEconomics
Class 11 & 121st & 2nd PUC
MathematicsPhysicsChemistryBiologyComputer Science

One subscription covers every subject in your child's class. Class 10 and 12 also get Board Exam Mode, a countdown, a revision plan and sample papers.

The maths that matters

What families pay today, and what they get for it.

One price, one class, every subject in it. Compare it to what a single subject of tuition costs.

Private tuitionCoaching instituteStaxED
Covers1 subject1–2 streamsEvery subject in their class
TimingFixed slotsFixed batches24×7, exam night included
DoubtsNext classIf you dare askAnswered on the spot*
Teaching styleOneOneTen modes per chapter
Your visibilityA word at pickupA PTM per termLive score plus weekly report
Typical yearly cost₹18,000–60,000 per subject₹40,000–1,00,000+₹2,999 for 12 months

Free to try

₹0

Browse the full syllabus and open a free chapter, no account and no card.

  • A free chapter to explore
  • All ten study modes on it
  • Installs from the browser like an app
Open a free chapter

The AI tutor needs a subscription even on free chapters, because every message has a real cost.

Everything included

Annual plan

₹2,999for 12 months

That's about ₹250 a month, for every subject rather than one.

  • Every chapter, every subject in their class
  • All ten study modes, plus the AI tutor*
  • Full parent portal: readiness, alerts, weekly digest
  • Parent-assigned tests, marked and reviewable
  • Board Exam Mode for Class 10 and 12
Get started

One student, one class. 365 days from activation. No auto-renewal, nothing is ever debited without you buying again. Paid once through Razorpay. *AI features are subject to fair-use limits. The ₹250 a month figure is a comparison, billing is a single ₹2,999 payment.

For schools and coaching centres

Run StaxED for your whole institution, under your own brand.

The same chapter-wise stack, deployed for your students with your identity on it, plus faculty and admin visibility into engagement, progress and assessment across classes.

Explore for institutions
Fair questions

The things every parent asks us.

Isn't this just more screen time?
It's the first screen time you can actually see: every minute tracked, every topic visible, and the app flags it when too much studying is happening late at night. No ads, no feed, no strangers, nothing designed to keep them scrolling.
Can an app really replace a teacher?
It doesn't try to. Keep the teacher and the tuition you trust. StaxED fills the gaps around them: the 10pm doubt, the revision no one supervises, the practice, and the proof that any of it is working.
Will my child actually use it?
That's the honest risk with every study app, which is why the free chapter exists. Streaks, a weekly goal with a reward you choose together, and a dashboard that shows you the truth within a week. Try it tonight and watch their reaction before you pay.
Which boards and classes do you cover?
NCERT-aligned content for Classes 8, 9 and 10, plus 1st and 2nd PUC (Classes 11 and 12) including Physics, Chemistry, Biology and Computer Science. You subscribe for one class and every subject in it unlocks.
Will I be charged again automatically?
No. There is no auto-debit mandate and no automatic renewal anywhere in the product. Access runs 365 days from activation; continuing after that means choosing to buy again.
Is my child's data safe?
Content and data are hosted in India and delivered through private, short-lived links. Payments are handled and verified by Razorpay. Nothing is sold to anyone. And parents see topics, scores and time, never their child's actual tutor conversations.

Open one free chapter tonight. Decide after that.

A free chapter to be sure, and two minutes to start. The boards are coming either way, walk in knowing they're ready.

Open a free chapterSee pricing
No account needed to look around · ₹2,999 a year when you're convinced · No auto-renewal