NEET · JEE · Software Interviews · Any exam

Why do you keep

making the same mistake?

Every wrong answer has a reason. Whyology tracks that reason — and makes sure you fix it, not just revisit it.

Start free — 50 mistakes, no card neededAlready have an account

Takes 2 minutes. Works for any exam.

The real problem

Hard work isn't moving your score

Most students revise what they're comfortable with. The uncomfortable truth: the marks you're losing are almost always to mistakes you've already made before.

📖

Re-reading chapters you already know

It feels productive. It rarely moves the score.

🔄

Seeing the same question type go wrong again

You noticed it once. You didn't fix the root cause.

🗓️

Vague revision plans that drift away

"Revise Organic Chemistry this week" covers everything and fixes nothing.

How it works

Three things.
Done properly.

1

Log the mistake in 15 seconds

Right after the test. Photo of the question. One tap for what went wrong. Done — built for post-exam exhaustion, not quiet study time.

Quick Capture — minimal by design
2

Prove you fixed it — don't just re-read it

When a mistake comes up for revision, the app asks you to recall the answer first — before showing your note. You prove you fixed it, not just that you remember logging it.

Active recall — not passive re-reading
3

Watch it compound

Get it right — next revision in 2 days, then 4, then 8. Get it wrong — resets to tomorrow. After 6 months, a record of every mistake you've provably fixed.

Spaced repetition · No manual scheduling

The insight that makes step 2 work

Same wrong answer.
Four different fixes.

Every mistake traces back to one of four root causes. The app asks you to pick one when you log. That single tap changes what your revision looks like — and what you need to do to actually fix it.

I Didn't Know

No memory of this concept at all.

→ Go back to source material first. Revising something you never learned doesn't work.

I Knew but Forgot

Studied it. Memory failed under exam conditions.

→ Recall practice — write it from memory before the app shows your note.

I Knew but Slipped

Had the knowledge. Execution failed — wrong formula, sign error, misread.

→ Solve a similar question under time pressure. Not theory. Execution.

?

I Panicked or Guessed

Time pressure overrode what you knew.

→ Test strategy — set your rule for when to attempt and when to skip.

See it in action

This is what step 2 looks like

A "Knew but Slipped" mistake comes up for revision. The app doesn't show the note first — it asks you to recall first.

Ray Optics · Lens Formula · Knew but Slipped

Your revision prompt

Write the correct sign convention for a convex lens from memory — before looking at your note.

✓  For a convex lens: distances in the direction of incident light are positive. The formula is 1/v − 1/u = 1/f, where u is negative for a real object.
22L+
Students sit NEET each year
1.18L
MBBS seats available
1 in 18
who appears gets a seat

The gap between a seat and missing it is often under 30 marks. That's the difference this app is built to close.

Built for anyone preparing for anything

One product.
Every high-stakes exam.

🔬

NEET Aspirants

Physics · Chemistry · Biology

"Sign convention in lens formula — logged as Knew but Slipped. Revised 4 times. Haven't dropped marks on it since."
📐

JEE Aspirants

Physics · Chemistry · Mathematics

"Integration by parts — kept skipping a step under pressure. Execution slip. Timed drills fixed it in 2 weeks."
💻

Software Engineering Interviews

DSA · System Design · CS Fundamentals

"Dynamic programming — could explain the theory but blanked in the actual interview. Knew but Forgot. Active recall rebuilt it."

UPSC · CAT · GATE · CA Foundation · Any domain your admin adds.

Pricing

Less than one coaching class.

One Unacademy session costs ₹800–1,500. A year of Whyology costs less — and runs quietly in the background of every study session.

Free

₹0

Forever

  • 50 mistakes — enough to see your first pattern
  • All four root causes
  • Unlimited spaced revision
  • Full analytics
Create free account

Pro

₹999

per year · ₹83/month

  • Unlimited mistakes
  • Everything in Core
  • Full analytics
  • Monthly Mistake DNA report
  • Guess accuracy by subject
Start Pro

Annual billing only. No auto-renewal. No card for the free plan.

Why annual only?

The product only works if you use it for months. Annual billing creates the commitment that makes the habit stick.

I already have a coaching class.

Coaching teaches new concepts. Whyology fixes the ones you already know but keep getting wrong in the exam. Different problem.

What if I don't see results?

The app works on data you log. Log consistently for 6 weeks and check revisions daily — you will see the pattern.

Will you repeat this mistake in the actual exam?

Start logging for free. No card, no commitment. 50 mistakes is enough to see exactly where you're leaking marks.

Start free — no card needed

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