GradeThisPaper marks Pearson Edexcel IGCSE and Cambridge O Level past papers and topical questions the way examiners do, question by question, with the reason behind every mark.
Most lost marks hide in small places: a skipped method step, a missing keyword, an answer that doesn't do what the command word asks. Scan your finished paper and see exactly where yours are, marked the way Edexcel and Cambridge mark.
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Pick a subject to see a marked example. Tap any answer to see exactly why it lost marks.
Edexcel science splits a calculation into substitution, rearrangement and evaluation. One slip here costs two marks, not one.
Recall mark. The equation in words or symbols (F = m × a) both score.
Edexcel gives one mark for substituting, one for rearranging to a = F ÷ m, and one for the answer. Multiplying instead of dividing lost two of the three.
Two points needed: name the force (friction or drag) and say it acts against the motion. Both are here.
Swipe the paper to change subject
Each feature solves a real problem students have with past papers: no one to mark them, no idea why marks were lost, and the same mistakes again in the real exam.
Scan every page of a finished paper. Each answer is matched to its question number and marked by that board's rules: method and accuracy marks, follow-through, levels for essays, and never above the maximum.
Snap up to 5 topical questions in one photo and get a verdict while you revise.
Pick your paper and the official scheme is ready. Can't find it? Upload yours, or choose “no scheme” for an honest estimate.
Your total checked against that session's grade boundaries: 9–1 for Edexcel, A*–E for O Level.
Flag any mark and it gets looked at again. You're never stuck with a wrong one.
Graphs, number lines, force diagrams and tables drawn step by step. Drag the values and watch the answer change, so the idea sticks instead of the words.
See which mark-scheme keywords you used and which you missed, highlighted in your own answer.
Why you lost the mark in two lines, and what earns it next time. No walls of text.
Export a clean PDF report or share an image of your result.
Every lost mark becomes a flashcard that comes back after 1, 3, 7, 14 and 30 days, the spacing that makes memory last, until you get it right every time.
The more papers you do, the more it tailors your practice to your weak topics and your common slips.
A running count of marks you've fixed, and a map of your syllabus from weak to strong.
A weekly goal with rest weeks built in and a pause during exams. No leaderboards, no shaming.
At most one a day, quiet hours respected, silent during your exam session.
On a laptop? Scan one QR code and snap pages with your phone. No sign-in needed on it.
Native apps are on the way. Until then, add the web app to your home screen and it opens full screen.
Stored privately, seen only by you, never sold.
General chatbots are built to chat. GradeThisPaper is built to mark, the way an Edexcel or Cambridge examiner does. Here's the same answer, marked both ways.
No prompt to write. I already know the level descriptors.
| Level | Descriptor | You |
|---|---|---|
| L3 · 5–6 | “Clear understanding and explanation of language and structure” | ✓ |
| L4 · 7–8 | “Thorough understanding and exploration”: effect on the reader, built across the text | ✗ not yet |
| Rules | One mark per level band, never above 10 | ✓ |
Level 3. To reach Level 4, explain what “wasteland” makes the reader feel about the parents, and link it to a second technique.
A real, handwritten Edexcel International GCSE English Language B paper (Sections A and C, 50 marks), same file, same instructions.
An 11-mark gap on the same answers. One also quoted a word that appears nowhere in the student's story, and its feedback could have fitted any essay. A general chatbot's mark depends on which one you ask. Ours follows the mark scheme every time.
✗Chatbots judge whether an answer “sounds right”, and in our test two of them were 11 marks apart on the same paper.
✓We follow each board's own rules: substitution, rearrangement and evaluation marks in Edexcel science, M1 A1 B1 and follow-through in Cambridge maths, identify-and-explain in economics, and AO2, AO4 and AO5 levels in English. Marks never go over the maximum and always add up.
✗Results depend on how well you write the prompt.
✓Scan your paper. That's it.
✗Generic answers that ignore what examiners reward.
✓Checks your answer for the exact keywords the scheme gives marks for.
✗Text only, or pictures that get the maths wrong.
✓Accurate graphs and diagrams you can drag and explore.
✗Long, hard explanations.
✓Why you lost it and how to get it, in two lines.
✗Forgets you when the chat ends.
✓Learns your weak topics and repeat mistakes over time.
✗One question at a time, copy, paste, repeat.
✓The whole paper in one upload, every question at once.
✗Not checked against exam papers.
✓Tested on real past papers against official schemes.
✗Mixes up boards, grades and question styles.
✓Edexcel IGCSE 9–1 and Cambridge O Level A*–E, by syllabus code.
The chatbot reply in the demo is an illustration of a common pattern. The real-test numbers come from our own test of two chatbot apps on one paper. Chatbots are great for learning ideas; GradeThisPaper tells you what an examiner would actually award.
Distance travelled is the area under the graph. Move the slider and watch it update.
Slipped on a rearrangement once? You'll see it again until you never slip.
Marks you can trust come from testing, not promises.
Completed Edexcel and Cambridge papers, marked and compared question by question with the official schemes.
No mark above the maximum, totals equal the sum of the parts, every answer on the right question.
Made by an Edexcel IGCSE student in Lahore, with friends testing it on their own papers.
Experienced teachers and examiners will review our marking on real papers, and we'll publish what they find.
Invites go out in waves before launch. Everyone gets a 7-day free trial.
You've been signed up for early access, and you'll be among the first to try GradeThisPaper. We'll email you once early access is open.
GradeThisPaper marks Pearson Edexcel IGCSE and Cambridge O Level past papers and topical questions the way examiners do, question by question, with the reason behind every mark. You scan your finished paper and see where you lost marks and how to fix them.
Pearson Edexcel International GCSE and Cambridge O Level, starting with the most-sat subjects, including sciences, maths, business subjects and English Language.
Yes. Pick your paper and the official mark scheme is usually already there. If it isn’t, upload your own, or choose “no scheme” for an honest estimate.
Yes. You can scan a full past paper or a topical. Quick Check marks up to 5 topical questions from one photo while you revise.
December 2026. People on the list are invited first, in waves.
Joining early access is free. At launch every account starts with a 7-day free trial, then it’s paid: plans start from Rs 999 a month, and there’s a Season Pass for exam season.
Yes. Your papers are stored privately, seen only by you and never sold. To delete your early-access details, email support@gradethispaper.com.
No. GradeThisPaper is an independent study tool, not affiliated with or endorsed by Pearson Edexcel or Cambridge. Marks are estimates to help you practise.