Built by the team behind xtremepape.rs — 15 years of free past papers
Every past paper, solved. Every topic, explained.
150,000+ step-by-step model answers across 66 Cambridge & IB subjects — every one mapped to the official mark scheme, in plain language you can learn from. Concise revision notes and flashcards for every syllabus topic. And when you write your own answer, an AI examiner marks it in seconds — snap a photo of your working, dropped marks explained.
Free tier forever · unlimited MCQ marking · no card required
On your phone: snap your working straight from the camera.
On your computer: type your answer or upload the photo — same examiner marking.
Works in the browser on any device — nothing to install.
66 Cambridge & IB subjects · one payment · nothing auto-renews
real student photoA real student’s photo — and yes, it caught the sign slip.
Sound familiar?
You finish a paper at 11pm. Who marks it?
You do — with the mark scheme, being generous to yourself. Here, an AI examiner marks it like the real one will: point by point, partial credit, no mercy and no guessing.
Mark schemes read like riddles.
“owtte”, “ecf”, “cao”… Every question here has a worked, step-by-step solution mapped to those exact points — in plain language you can actually learn from.
Twelve papers in — are you even improving?
Every attempt feeds a live picture of your accuracy, topic by topic, against real grade thresholds. You always know what to revise next, and what to skip.
“But doesn’t AI make things up?”
Generic chatbots hallucinate exam answers with total confidence. That’s why we don’t serve raw AI output — every worked solution passes a multi-layer verification pipeline before a student ever sees it.
Layered verification
No solution is one model's word. Each one is screened through multiple independent verification layers before it's ever shown — raw AI output is never served.
Wrong answers get pulled
Solutions that fail verification are corrected or withheld automatically. We'd rather show you nothing than something wrong.
Humans in the loop
Flagged content is audited by human review, and every solution has a report button. Fixes ship to everyone, permanently.
Everything in every pass
One complete product — you only choose how long. Free to start, no card required: MCQs are marked free for everyone.
150,000+ worked solutions
A decade of past papers across Cambridge A Level, O Level, IGCSE and IB — every solution mapped to the official mark scheme, with figures.
Revision notes + flashcards
Concise, syllabus-aligned notes for every sub-topic in all 66 subjects — worked examples and diagrams included, with 21,000+ flashcards to drill.
AI marking — typed or photo
Snap your handwritten page from your phone, or type / upload on your computer — point-by-point grading with partial credit either way. Runs in the browser, nothing to install.
Adaptive planner + tracker
A day-by-day plan anchored to your exam date, re-ordered around your weak spots as you improve — the whole syllabus covered, not just favourites.
Spaced recall
Marks you drop come back on a schedule — 1, 3, 7 days — until you've nailed them. Stop losing the same marks twice.
Printable worksheets
Print a set, work it with a pen at your desk, then scan the QR to AI-mark your answers and reveal the worked solutions.
Timed mocks + smart practice
Full papers under exam conditions, a Smart mix weighted to your weak topics, or drills by topic and difficulty.
Anti-hallucination safeguards
Every solution passes multiple independent verification layers before it's served — what fails is pulled, not published, and humans audit the edge cases.
Coming next, included free: predicted papers before each session and a syllabus-aware tutor chat.
Students have trusted this team for 15 years
The free archive got millions of students through their exams. Here’s what the first students on the new app say.
“I do all my solutions by hand and my handwriting is not the neatest, but it still reads it fine and marks it right there and then. Before this I had to wait for my teacher or my friends to check my answers — sometimes for days.
I also used the plan-for-exam feature and it timed my whole preparation really well. I got through my prep in about half the time I thought it would take.”
“It’s been years since I passed my O/A Levels but you were a huge help in that. Thanks.”
“Thank you so much for this website! I used it as a student and now using it as a teacher.”
More than answers — a way to study
Solutions get you unstuck. These get you ready.
Ideal gases
An ideal gas obeys pV = nRT at all pressures and temperatures. Real gases approximate this at low pressure and high temperature…
One note per sub-topic, every subject — read it, flip the cards, then drill the topic’s real past-paper questions.
Notes that cover the syllabus, not a textbook
One concise revision note per sub-topic, for every one of the 66 subjects — worked examples, diagrams and flashcards built in. Read the note, flip the cards, then drill the same topic's real past-paper questions. No 800-page textbook required.
Waves needs work — 12 questions queued next.
Progress that watches your weak spots for you
Every answer you attempt feeds a live picture of your accuracy, topic by topic — and powers Smart-mix practice that automatically serves more of what you get wrong and less of what you already ace. You never have to wonder what to revise next.
- TodayWaves — refraction & TIRweak
- TueForces — moments
- WedKinematics — mixed drill
Paces the whole syllabus from day one — and rebuilds around your weak topics right up to exam day.
A plan from day one, not a last-minute scramble
Tell us your exam date and the planner paces the whole syllabus from the day you start — months out or weeks out — rebuilding itself around your weakest topics as you improve. Every syllabus point gets covered before the exam, not just the ones you like. Open it each morning and do the next thing.
State the principle of moments.
9702 · you dropped this mark 3 days ago
Only what you actually got wrong — first-time aces never clog the queue.
What you get wrong comes back — until it doesn't
Every mark you drop is scheduled for spaced review: 1 day, 3 days, a week, longer each time you nail it. Questions you got right first time never clog the queue. It's how you stop losing the same marks twice.
Do it on paper, then scan the QR — same questions, ready for AI marking and worked solutions.
Print it, do it with a pen, scan to mark it
Build a worksheet, print it, and work through it at your desk like a real exam. The QR code on the sheet brings the exact same questions back on your phone — AI-mark your handwritten answers and reveal the worked solutions.
Real exam conditions — no answers until you submit the whole paper.
Sit the whole paper, timed
Mock-exam mode runs a full paper under real exam conditions — the clock, no answers until you submit — then marks the lot at the end. Walk into the real thing having already done it.
Exam prep shouldn’t cost more than the exam.
Comparable AI prep tools charge $15–17 a month — or $250–450 up front for a single subject. This is the same kind of product, every subject included, for less than one month of the competition. One payment, nothing auto-renews.
66 subjects — maths, sciences, commerce, humanities & languages
Every subject gets the full treatment: a decade of past papers with worked solutions mapped to the official mark scheme, and a complete set of revision notes with flashcards. We’re still expanding — every pass includes every subject we add, at no extra cost.
Cambridge AS & A Level
- Mathematics (9709)
- Physics (9702)
- Chemistry (9701)
- Biology (9700)
- Computer Science (9618)
- Economics (9708)
- Accounting (9706)
- Business (9609)
- English Language (9093)
- English General Paper (8021)
- Geography (9696)
- History (9489)
- Sociology (9699)
- Urdu (9686)
Cambridge IGCSE
- Mathematics (0580)
- Additional Mathematics (0606)
- Statistics (0479)
- Physics (0625)
- Chemistry (0620)
- Biology (0610)
- Computer Science (0478)
- Economics (0455)
- Accounting (0452)
- Business Studies (0450)
- First Language English (0500)
- Geography (0460)
- History (0470)
Cambridge O Level
- Mathematics D (4024)
- Physics (5054)
- Chemistry (5070)
- Biology (5090)
- Computer Science (2210)
- Economics (2281)
- Principles of Accounts (7707)
- Business Studies (7115)
- English Language (1123)
- Islamiyat (2058)
- Pakistan Studies (2059)
- Urdu First Language (3247)
- Urdu Second Language (3248)
IB Diploma (SL & HL)
- Mathematics AA
- Mathematics AI
- Physics
- Chemistry
- Biology
- Computer Science
- Economics
- Business Management
- English A: Literature
- English A: Language & Literature
- Geography
- History
- Psychology
Sitting a subject you don’t see? Tell us on the forum — Founders’ subject requests jump the queue.
One payment. Pick how long.
Every plan is the same complete product — all 66 subjects, worked solutions, revision notes, AI marking (typed or photo), progress, planner and mock exams. You’re only choosing the window. Nothing auto-renews.
Launch pricing. The 30-Day and Season passes go back to $8 and $24 when the launch window closes — lock in the discount now.
30-Day Pass
one-time · 30 dayslaunch price
Try everything for a month. No subscription, no auto-renew.
Get it →✓ One-time payment · no subscription · money-back guaranteeBest valueFounder Pass
one-time · 2 years
Everything for 2 full years — including every subject and feature we add. Only 200 will ever exist.
Get Founder Pass →✓ One-time payment · no subscription · 3-day no-questions refundSeason Pass
one-time · 90 dayslaunch price
A full exam-prep window — covers one whole Cambridge or IB session.
Get it →✓ One-time payment · no subscription · money-back guaranteeFull details, the free tier, and pricing FAQs on the pricing page.
Compared to the alternatives
| Product | Price | Notes |
|---|---|---|
| Typical AI exam-prep tool (Cambridge) | ~$15–17 / month | monthly, all year round |
| Typical IB prep platform | ~$250–450 up front | often for a single subject |
| Video-course platform | ~$40+ per subject | one subject at a time |
| prepare.xtremepape.rs — Founder Pass | $19 | once, 2 full years, every subject |
Founder Pass — $19, two full years
The best-value way in — while it lasts.
The Founder Pass is everything — all 66 subjects, every feature, every new subject and predicted paper we add — for 2 full years from checkout. That’s 4 Cambridge sessions, a whole AS-to-A2 cycle, at the lowest price we’ll ever offer. No subscription, no upgrade fees, no “pro tier” later.
It’s capped at 200 students — a thank-you to the xtremepape.rs community that’s backed us from day one. Once the spots fill, this price is retired for good.
Launch exclusive: only 200 Founder Passes will ever exist. When they’re gone, this price is retired for good.
Get Founder Pass — $19Prefer a shorter window? The 30-Day ($4.99) and Season ($9) passes are the same product. Pay by card · 3-day no-questions refund.
FAQ
- Is this already live?
- Yes — all of it. 150,000+ worked solutions, revision notes with flashcards for every syllabus topic, AI marking (typed or a photo of your handwritten working), a per-topic progress dashboard, a day-by-day revision planner, and timed mock exams are running today across Cambridge A Level, O Level, IGCSE and the IB Diploma. Every pass gets full access from the day you buy.
- What subjects?
- 66 subjects across Cambridge A Level, IGCSE, O Level and the IB Diploma (SL & HL). Maths and the sciences, commerce (economics, accounting, business), computer science, English (language, literature and General Paper), humanities (geography, history, sociology, psychology), plus Urdu, Islamiyat and Pakistan Studies. Every subject comes with mark-scheme-mapped worked solutions AND a full set of revision notes. The complete list is on this page above — and everything we add later is included in your pass at no extra charge.
- Is this connected to xtremepape.rs?
- Yes — same team. The free papers stay free at papers.xtremepape.rs. This is a paid AI layer on top of them.
- Why is Founder Pass 2 years and not lifetime?
- 2 years (4 Cambridge sessions) is enough for any single student to complete a full AS → A2 or O-Level cycle and then some. We picked an honest duration we can stand behind, instead of saying "lifetime" and quietly capping usage later. If you need access beyond 2 years, you can buy another pass at whatever the price is then.
- Why is this so much cheaper than typical AI tutors?
- Two reasons. First, our audience is the existing xtremepape.rs forum — we don't pay for ads. Second, we run a leaner AI architecture and deliberately keep margins thin. Most students using us are already paying tuition and exam fees; we're not trying to add a third bill on top.
- Refund policy?
- Every plan is a one-time payment, nothing auto-renews. Founder Pass: 3 days from purchase, no questions asked. 90-day Season Pass and 30-Day Pass: full refund within 7 days if you haven't used AI marking yet. Full details on the refund page.
Free papers stay free.
papers.xtremepape.rs has been free for 15 years and isn’t going anywhere. This adds AI on top — and helps fund the free archive too.
Mark your first paper free →No card required · unlimited MCQ marking on the free tier