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AI-powered learning · Board-aligned · CBSE & IGCSE

Learning that actually stays withstudents.

Prepdha helps students understand each topic, practise at their own pace and remember what they learn when it matters most — built on how the brain truly holds on to knowledge.

Board-aligned · CBSE & IGCSELearn & teach in one ecosystemSafe for young learners
WHY PREPDHA

More content isn’t the answer. Remembering is.

Most learning apps answer with more hours of it. Prepdha explains each chapter simply — then helps students plan its return, before it’s forgotten.

Learning that lasts

Spaced revision brings topics back before they're forgotten.

Answers at the right level

Explained simply, always pitched to the student's exact level.

A calm, focused space

No ads, no noise, no distractions — just learning.

Safe AI for kids

Built with care and age-appropriate guardrails throughout.

The science behind Prepdha

We don’t fight forgetting. We design around it.

Over a century of memory research points to the same truth: we forget most of what we learn within days — unless it’s revisited at the right moments. Prepdha is built on that science.

1

Active recall

Bringing an answer to mind — not re-reading — is what actually builds memory. Every quiz and flashcard is designed to make the brain retrieve, not just recognise.

2

Spaced repetition

Students schedule each topic to come back at widening intervals — just before it'd be forgotten. Prepdha reminds them when the day arrives. Each return strengthens the memory and slows the fade.

3

Mastery, not coverage

Weak topics are surfaced early and revisited more often, so understanding deepens instead of gaps quietly piling up.

The forgetting curve

Without revision, memory drops sharply — that’s the line you see now. Tap the revision days on and watch recall climb and hold.

0%25%50%75%100%Day 0Day 15Day 30Days since studying
~8%recall on day 30, with your revisions
~8%recall on day 30, no revision

Add revisions — tap a day to schedule it:

Illustrative model based on the forgetting curve from memory research (Ebbinghaus, 1885).

The research behind this

1885

Ebbinghaus first measured the forgetting curve — memory of new material drops sharply, then levels off.

2006

Cepeda et al. synthesised 317 studies — spaced practice reliably beats cramming.

2008

Karpicke & Roediger showed active recall beats re-reading by a wide margin.

2015

Murre & Dros replicated it in PLOS ONE, confirming the curve’s shape holds over a century later.

Inside Prepdha

One calm space — built for how students actually learn.

Lessons that explain simply, practice at the right level, and gentle daily reminders that keep learning and revision on track. Everything in one focused place.

  • Lessons & answers matched to each level
  • Spaced revision built in
  • Weekly progress you can see
  • Works offline · web & app

Welcome back, Aarav

Day 24 streak

Where Aarav left off

Science · Light

2 lessons · 1 practice

Maths · Fractions

Revision due today

English · The Fable

Continue reading

A gentle reminder: time to revise last week’s topics.

Find the Prepdha that’s right for you.

Whether you’re a parent at home, a school leader, or an institution, there’s a path built for you.

Built for CBSE & IGCSE. More boards on the way.

Prepdha is crafted for CBSE and IGCSE today, with high-quality, board-aligned content throughout. More boards are coming — shall we let you know the moment yours is ready?