Solve past papers
Pick the topics you want and build a session in seconds, from a full year's paper or a topical set. Solve it on paper like the real exam, then upload a photo. Typing works too.
Yearly or topical O Level, IGCSE, A Level and BISE past papers, free. Solve on paper, upload a photo, get marked against the official mark scheme in seconds and see which subtopics to fix.
Your first 50 pages are marked free.
No card needed. Then from $4.99.
Question 2 · 2 marks
Explain why the atomic radius decreases across Period 3.
1/2
marks
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Student answer
The atomic radius decreases as outer shell is lost and nuclear charge increases pulling the electrons much closer as shielding decreases
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How it works
Top students don't spend hours marking their own papers. They spend that time fixing weak topics. You solve the paper. AIDE AI does steps 2 and 3 for you, automatically.
Pick the topics you want and build a session in seconds, from a full year's paper or a topical set. Solve it on paper like the real exam, then upload a photo. Typing works too.
Every answer marked to the official mark scheme in seconds, with the point you missed. No marking yourself, no mark schemes to decode.
Your strengths and weaknesses logged by topic and subtopic after every session, so you know exactly what to work on before the next one.
Then repeat, starting with your weak subtopics.
AIDE AI's proprietary marking engine, the one official Cambridge examiners use in 6 subjects, applied to your work.
Updated after every session, so you revise Moles, not the whole chemistry book.
Solve a paper at 11pm and know your marks before you sleep.
We read the mark scheme, apply it, and show you the point you missed.
Past papers for Cambridge O Level, IGCSE and A Level, and Pearson Edexcel, with every answer marked against the official mark scheme.
Browse past paper questions by syllabus topicReal stories about exam prep, past papers, and feedback that lands before test day.
“My finals were in two days. Past papers, topical drills, and instant checks on mocks got me exam-ready in one focused weekend.”
“I uploaded a timed paper and had clear next steps the same evening. My teacher still signed off I just wasn't stuck guessing.”
“One day before boards I ran three topical sets with hints. I walked in knowing the traps I'd missed on every practice run.”
“The prep hub built a one-day sprint: papers, mark schemes, and quick checks. I didn't waste hours on topics I already had down.”
“My finals were in two days. Past papers, topical drills, and instant checks on mocks got me exam-ready in one focused weekend.”
“I uploaded a timed paper and had clear next steps the same evening. My teacher still signed off I just wasn't stuck guessing.”
“One day before boards I ran three topical sets with hints. I walked in knowing the traps I'd missed on every practice run.”
“The prep hub built a one-day sprint: papers, mark schemes, and quick checks. I didn't waste hours on topics I already had down.”
Marking credits that work at your pace. Purchase a bundle of marking credits and use them whenever you need within 12 months. Each page represents one side of written answers.
No card needed
50 pages marked free
Flashcards by topic or exam board
Past papers to browse and download
Mock exams and topical sets
Revision notes
Free pages never expire
5¢ a page
AIDE AI's proprietary marking engine
Feedback on every question
Topic analytics and weak-topic profile
Progress reports and email support
Valid for 12 months
4.4¢ a page
5x more usage
AIDE AI's proprietary marking engine
Feedback on every question
Topic analytics and weak-topic profile
Progress reports and email support
Valid for 12 months
3.6¢ a page · best value
10x more usage
AIDE AI's proprietary marking engine
Feedback on every question
Topic analytics and weak-topic profile
Progress reports and email support
Valid for 12 months
Prices in US dollars, paid by card. Secure payments. Have a referral code from a friend or teacher? Enter it at signup.
For parents: pay once, no subscription. Marking a full paper costs about 43¢ to 60¢, and pages stay valid for 12 months.
Sign up, pick a yearly or topical paper, solve it on paper and upload it. Your first 50 pages are marked free.
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Become a campus ambassador and earn rewards for every student you bring in.
Practising with yearly and topical past papers is free, and no card is needed. Every new account also gets its first 50 pages marked free. After that you only pay when you want answers checked: 100, 500 or 1,000 pages for $4.99, $21.99 or $35.99. A page is one side of your written answers, and a full paper is about 12 pages. Pages you buy stay valid for 12 months.
Cambridge O Level, IGCSE and A Level, Pearson Edexcel and BISE boards in Pakistan, across 25+ subjects, including Maths, Physics, Chemistry, Biology, English, Economics, Business, Accounting, Computer Science, Islamiyat, Pakistan Studies and Urdu.
Around the last 10 years of past papers for each programme, as yearly papers and as topical sets. More papers are being added over time.
Solve the paper on paper and upload a photo, or type your answers. AIDE AI reads your handwriting and marks each answer against the official mark scheme, showing the marks you got and the point you missed.
Yes. Write your answers on paper as you would in the exam, take a photo and upload it. Typing works too.
In seconds.
Topical sets let you work through one topic at a time while you are still learning the syllabus. Full yearly papers are best closer to the exam, under timed conditions.
After every session, your strengths and weaknesses are logged by topic and subtopic, so you know what to practise next.
In a 2025 blind test, AIDE AI's marking was 95% consistent with examiner marks. Use it as practice feedback; it does not replace your teacher or Cambridge's official marking.
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