Past papers
Every past paper, marked
The full archive of real exam questions — with worked answers and instant AI marking. Drill your weak spots until they're strengths.
4,168 papers · marked in seconds
Everything's already inside — from day one
4,168
Past papers
121,140+
Exam-style questions
104,282+
AI flashcards
1,541+
Topics with notes
35+
Subjects covered
Interactive learning · free, no account needed
Don’t just read it. Turn it, do it, test it.
46 interactive tools across Biology, Chemistry, Physics and Maths — 3D models you rotate and tap, concept builders that draw themselves, and hands-on experiments just like the practical paper. Every one covers exactly what the syllabus asks, then tests you on it.
3D Explorer · try it live below
Building your cell…
3D isn't available on this device
Your browser may have WebGL turned off — the structure list below still works.
Drag to rotate · tap a structure
Tap it on the model.
✓ Correct!
Not quite — it's the , now highlighted.
Plant vs animal — what examiners ask for
| Feature | Plant cell | Animal cell |
|---|---|---|
| Cell wall | Present (cellulose) | Absent |
| Cell membrane | Present | Present |
| Nucleus | Present | Present |
| Cytoplasm | Present | Present |
| Chloroplasts | Present | Absent |
| Ribosomes | Present | Present |
| Mitochondria | Present | Present |
| Vacuole | One large, permanent (cell sap) | Small and temporary, or none |
| Shape | Fixed and regular | Irregular |
Green rows are the differences — those are the marks.
14 tools
3D Explorers
Rotate any structure and tap its parts — cells, organs, molecules, even the Solar System.
Heart
Eye
Neurone
Atom
Solar System
Giant Structures
+8 more
24 tools
Learn tools
Watch the idea build itself — drag, slide and see the graph or diagram respond, then get tested on it.
Enzymes
Osmosis
Circuit Builder
Graph Transforms
Punnett Square
Ray Diagrams
+18 more
8 tools
Experiments
Roll up your sleeves — pour reagents, wire circuits, hang masses and take readings, just like the practical paper.
Titration
Rates Lab
Hooke’s Law
Density
Refraction
Food Tests
+2 more
All 46 are free on your plan, with notes, flashcards and real exam questions on every topic. Start free →
Real students
The grades go up.
The stress goes down.
Pinned to the cork board, in their own words.
4.9 · 500+ students
B → A*
"The AI tutor explained osmosis better than my teacher — at 11pm the night before. I finally got my A*."
Aisha M.
AS Biology · Cambridge
C → A
"Real past papers with instant marking. I drilled my weak spots and went from a C to an A in two months."
Daniel O.
A2 Maths · Edexcel
D → B
"My mum stopped panicking once she could watch my predicted grade climb every single week."
Yuki K.
O Level Sciences · Cambridge
Exam-ready
"Booked a 1:1 tutor for a 5am chemistry recap before my exam. They actually showed up. Walked in calm."
Faisal A.
AS Chemistry · Cambridge
How it works
Three steps, then study mode.
01
Pick your subjects
Choose O Level, AS or A2 and the subjects you're sitting — just like the quiz at the top. Your syllabus, past papers and weak spots line up instantly.
02
Practice with help nearby
Run quizzes, attempt past papers, and ping your AI tutor when something doesn't click. No judgement, infinite patience.
03
Watch the grade rise
Your predicted grade updates each session. Topic mastery, momentum, and time-to-exam — all on one page.
Subjects covered
All your subjects.
One revision shelf.
O Level, AS Level & A2 Level — the syllabus, every past paper, and worked answers.
Browse all subjects →∑
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+ 35 more
What you get
Everything you need —
nothing you don't.
Real past papers, an AI tutor, adaptive flashcards, quizzes and a live tutor — all built around your exact syllabus.
AI flashcards
Flashcards that adapt to you
AI-made cards for every topic that resurface what you keep forgetting — right before you'd actually forget it.
104,282 AI flashcards
Quizzes
Quiz any topic, instantly
Bite-size quizzes with instant marking and the full mark scheme. Watch your accuracy climb week over week.
121,140+ questions
Notes
Notes for the whole syllabus
Every topic chunked into bite-size lessons with revision notes, worked examples and downloadable PDFs.
1,541 topics · 338 revision notes
Progress
Watch your grade climb
Your predicted grade updates every session — topic-by-topic mastery and weak spots flagged. No surprises on results day.
Predicted grade · updated live
Live tutoring
A real tutor, on demand
Book 1:1 sessions with expert teachers, in person or by video. They see exactly where you're stuck.
Expert teachers · 1:1
AI Tutor
Your personal tutor,
available 24/7.
Ask any question about your syllabus — from photosynthesis to integration — and get a clear, curriculum-aligned answer instantly. No waiting, no judgement, infinite patience.
- Knows your exact syllabus
- Explains step-by-step, not just the answer
- Flags topics that come up in past papers
Live support
Get help when
you need it.
Live 1:1 tutoring and subject-based chat — so you're never stuck alone.
Pricing
Less than a tutor.
More than a textbook.
Start on Free — no card. Upgrade only when you're ready, cancel anytime.
a private tutor charges $25–40 for one hour… ↓
Free
$0
forever
A real taste of every subject — no card, no clock.
- First topic of every subject — all content
- Flashcards, quizzes, revision notes & planner
- Interactive tools & 3D explorers in free topics
- Join live class quizzes from your phone
- Streak & mastery tracking
- Read peer subject chat
No credit card · No time limit
Basic
$35
/ month
≈ $8 a week
Everything unlocked, in every subject you take.
- Every topic unlocked, in every subject
- 121,000+ real past-paper questions, marked instantly
- Full exam mode — timed, exam-style practice
- 104,000+ flashcards with spaced repetition
- Revision notes written to the syllabus
- All 46 interactive tools, 3D models & experiments
- Build your own quiz from any topics
- Predicted grade, mastery & performance dashboard
- Teacher homework, marked the moment you hand in
- Study planner, trophies & peer subject chat
Cancel anytime · Keep your progress
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Pro
$62
/ month
≈ $14 a week — less than one tutor hour
Everything in Basic, plus a tutor that never sleeps.
- ✨ Unlimited AI tutor, on every topic — 3am included
- Everything in Basic
- Instant answer explanations
- Step-by-step worked solutions
- Personalised study hints
- Priority support
Cancel anytime · Downgrade whenever
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All prices in USD. Billed monthly.
Before you ask
Everything you're wondering.
Is it actually free?
Yes — create an account with no credit card and get the first topic of every subject, plus flashcards, quizzes, revision notes and the study planner. Upgrade only if you want every topic, full exam mode and the AI tutor.
Which exam boards and levels do you cover?
Cambridge and Edexcel, across O Level, AS Level and A2 Level — the syllabus, every past paper and worked answers for each subject.
How are my answers marked?
Instantly, by AI. You get the correct answer, a clear step-by-step explanation and the mark scheme — plus a predicted grade that updates every session.
How many past papers and questions are there?
4,168 past papers and 121,140+ exam-style questions, growing every week — all tied to your exact syllabus.
Is there a real tutor, or just AI?
Both. You get a 24/7 AI tutor on every topic, and you can book 1:1 sessions with expert teachers — in person or by video call.
Do I need a credit card, and can I cancel?
No card to start — the free plan is free forever. Paid plans are billed monthly and you can cancel anytime from the billing portal.
Still stuck? Talk to us →