Learning that lasts
Spaced revision brings topics back before they're forgotten.
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.
One app for every child — learning that lasts, at home. Self-paced, safe and gentle on the whole family.
Better outcomes, less workload, for your whole school. Dashboards, insights and a learning platform teachers trust.
AI-powered white-label platform for institutions. Use your own content, boost retention and track performance.
Most learning apps answer with more hours of it. Prepdha explains each chapter simply — then helps students plan its return, before it’s forgotten.
Spaced revision brings topics back before they're forgotten.
Explained simply, always pitched to the student's exact level.
No ads, no noise, no distractions — just learning.
Built with care and age-appropriate guardrails throughout.
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.
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.
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.
Weak topics are surfaced early and revisited more often, so understanding deepens instead of gaps quietly piling up.
Without revision, memory drops sharply — that’s the line you see now. Tap the revision days on and watch recall climb and hold.
Add revisions — tap a day to schedule it:
Illustrative model based on the forgetting curve from memory research (Ebbinghaus, 1885).
The research behind this
Ebbinghaus first measured the forgetting curve — memory of new material drops sharply, then levels off.
Cepeda et al. synthesised 317 studies — spaced practice reliably beats cramming.
Karpicke & Roediger showed active recall beats re-reading by a wide margin.
Murre & Dros replicated it in PLOS ONE, confirming the curve’s shape holds over a century later.
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.
Welcome back, Aarav
Day 24 streakWhere Aarav left off
Science · Light
2 lessons · 1 practice
Maths · Fractions
Revision due today
English · The Fable
Continue reading
Whether you’re a parent at home, a school leader, or an institution, there’s a path built for you.
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?