AI study app · free to start

Your notes, still in your head — on exam day.

PupilBot is the AI study app that turns your handwritten notes, slides and PDFs into quizzes and flashcards, then asks each one again right before you'd forget it — spaced repetition, so what you learn this week is still there when the exam comes.

Start studying free iPhone app· on the App Store

Free to start · Nothing to install · Works in any browser

I'll check in before you forget.

A study session, from your notes

Know what needs another look.

Your Cell Biology notes

12 pages · PDF or photos

Topics found in your material

  • Cell structure
  • Mitochondria
  • Cell division

01 · Build understanding

Written answer

Why do muscle cells have more mitochondria than skin cells?

Example answer

“Muscle cells need more energy to contract.”

See how PupilBot helps

Right idea. Connect it to ATP.

Mitochondria produce ATP, which powers muscle contraction. More demand for ATP means more mitochondria.

Based on your notes · page 7

02 · Know what to review next

Cell structureLooking strong
MitochondriaReview tomorrow

Keep it fresh with spaced reviews and Telegram reminders.

Try it with your notes

Illustrative study preview

The card catalog

Every shape of question

Six formats, one goal: real recall. PupilBot asks in the form that fits the page in front of you — and you can even answer out loud.

Single choice

Four options, one right answer — the classic quick check.

Multiple choice

More than one answer is right. Find every one.

Flashcards

Open questions you answer in your own words — graded by AI for meaning, not matching.

Fill in the blank

A sentence from your notes, minus the word that matters.

Matching

Pair terms with definitions, causes with effects.

Numeric

Answer with a number — close counts, within tolerance.

Answer out loud

Tap the mic and say it — PupilBot transcribes as you speak and grades it like a written answer.

The shelf

How PupilBot helps you learn

PupilBot is an AI study tool that turns your notes into quizzes and flashcards — a patient tutor, quiet enough to read by.

Photograph or import

Snap the pages, or pick the chapters you need out of a PDF. You choose what to study.

Every kind of question

Single-choice, multi-choice, fill-in-the-blank, matching, numeric — plus AI-graded flashcards. Every answer is active recall, in the format that fits.

Adaptive difficulty

Questions get harder as you improve. Struggling? We dial it back and reinforce fundamentals.

Spaced repetition, built in

We track how each question fades from memory and bring it back the moment you'd start to forget. FSRS-6 spaced repetition + Bayesian Knowledge Tracing (BKT) for per-topic mastery.

Native iPhone app

Now on the App Store. Camera, OCR, adaptive questions and FSRS-6 review — all in one app, all in your pocket.

Connect Telegram

Studying on the web already? Link Telegram in a tap and the bot asks you a question or two in chat whenever a review comes due.

The reading

Three pages to mastery

Page 1

Bring in the pages

Open the camera and snap a chapter, your notes, a few slides — or load a PDF and pick the pages or chapters you need. Our OCR engine reads every line and pulls out the key topics.

Page 2

Practice adaptively

Six question shapes, picked for what you're learning. The system tracks where you're strong and where you need practice, adjusting in real time.

Page 3

Remember it

FSRS-6 spaced repetition brings every card back the moment you'd start to forget. Bayesian Knowledge Tracing keeps a running mastery estimate per topic, so we know what still needs work. Practice in your browser — and connect Telegram if you want a nudge between sessions.

Where the questions reach you

See it work

Bring in your pages and practice in the browser. Connect Telegram and the same questions find you between sessions.

In your browser
Import → questions

Bring in pages, start practicing

Snap a chapter or drop in a PDF — questions are ready in about a minute.

Connected to Telegram
Between sessions

A nudge in your chats

Link your account and the bot asks when a review comes due.

Pricing

Your first study is free.

Turn your pages into practice. Start with one free study, then go Premium when you have more to learn.

Free

0 forever

Everything you need to try a smarter way to study.

  • One study from your photos, PDF or text
  • Adaptive questions with answer feedback
  • Spaced repetition and topic mastery tracking
  • Practice in your browser or through Telegram
Start studying free

Premium

—

Room for every chapter, course and next exam.

Everything in Free, plus:

  • Upload up to 10 studies a day
  • Build a library across your subjects
Create your account

Start with your free study. Upgrade when you need more.

No card needed to start. Cancel your subscription anytime.

For AI agents

Works with your AI assistant

Connect Claude, Claude Code or Codex to PupilBot over MCP. Your agent can turn any text into a study, watch it process, and read your mastery topic by topic — you keep practicing in the app.

MCP server URL https://www.pupilbot.com/mcp

Claude

Settings → Connectors → Add custom connector, then paste the URL.

Claude Code · Codex

In your terminal:

claude mcp add --transport http pupilbot https://www.pupilbot.com/mcp codex mcp add pupilbot --url https://www.pupilbot.com/mcp codex mcp login pupilbot

Sign in with your PupilBot account when the agent asks to connect

Developer docs — MCP tools, OAuth, OpenAPI and agent files

How to connect it — setup for Claude, ChatGPT, Codex and other MCP clients

Start studying in your browser

Free to start. Bring in your first pages and get your first questions in minutes.

Create your free account

Already have an account? Log in