
Know exactly why each mark was lost.
- Every answer marked against the real mark scheme, in minutes
- The reason for every lost mark, not just a score
SudoStudy is an AI marker for CIE, AQA and Edexcel. Upload a class set of scripts and each answer is checked line by line against the official mark scheme, with the reason for every mark.
Free trial includes AI marking. Student? Practise past papers with instant marking →
Trusted by schools across the world

Harris Westminster Sixth Form
240+ students

Newham Sixth Form College
210+ students

St. Oscar Romero Catholic School
180+ students

Wallington County Grammar School
230+ students

Chilton Saint James School
150+ students

Macleans College
270+ students
Beaconhouse School System
310+ students

Lahore Grammar School
280+ students
Why schools switch

90%
of students who practise on SudoStudy go up at least one grade.


Case studies
How three schools took marking off their teachers' desks, and what happened to the numbers.
The AI behind your marking
SudoStudy AI
SudoStudy AI
0%
agreement with Cambridge examiners on essay marking
Upload & mark
Past papers, your own worksheets, even photos of handwritten scripts. All marked to the right mark scheme. Tap a step to see how.
Drop your students' scripts here
PDF, DOCX, or photos — marked automatically
Set & assign
Build the quiz, send one link, and marked results arrive as students submit. Tap a step to see how.
Everything you need
Built around the work teachers actually do, not a feature checklist.
Every mark point — M1, A1, B1, AO1/AO2/AO3 — checked and explained per response. You review and can override any award.
Turn results into progress reports parents actually understand — topics covered, strengths, and what to work on next.
Spot weak topics across a cohort in one glance. Plan your next lesson with evidence.
Every paper, every board, every year — digitised and ready to assign.
Build assessments from your own questions or curated topic pools in minutes.
Self-paced practice with immediate AI feedback — replaces topical revision books.
What people say
Every quote is a public, verified review from a teacher or student. Nothing invented.



Swipe for more reviews

For your department
Set the paper, collect the scripts, hand back marked work the same day. Start with one class on a free trial that includes marking, or book twenty minutes with us to plan a department rollout.
Pricing
Create and download quizzes for free. Pay only when you want your students marked and tracked.
$0.00
No subscription, no card. Available to every teacher account.
$2.00per active student / month
Billed from a 30-student minimum, so the smallest plan is $60.00 per month. Save 30% paying yearly.
Everything in Free, plus:
Creating a school starts a 14-day free trial. Trials are per school and start when the school is created, so joining an established school may leave you with little or no trial time.
See the platform in action and ask any questions you have
Get instant support and answers to your questions
We typically respond within minutes
Prefer email? contact@sudostudy.com
FAQ
Straight answers on how the marking works, what it supports and how to get going.
Email us and a real person replies, usually within a few hours.