The revision tool
that knows what you don't.
GCSE and A-Level practice questions on every topic, marked instantly by AI. Your predicted grade and Exam Readiness Score update after every answer — so you always know exactly where to focus.
10 free questions · No credit card · Works on any device
155 questions answered so far
Exam Readiness
AQA GCSE Mathematics
71
/ 100
On track
Predicted: 7
Solving Quadratics
Solve x² − 5x + 6 = 0
3 topics due for review today — optimal moment to consolidate
AI marked in 0.8s
Everything in one platform
Built to get you exam-ready
From the first practice question to the final mock — generation, marking, and tracking that work like a great tutor.
Examiner-style marking
Type your answer or upload handwritten working. Our AI marks it like a real examiner — step-by-step ticks and crosses, method & accuracy marks, and specific feedback on every slip.
AI question generation
Unlimited original, exam-style questions for any topic, matched to your board and level.
Live predicted grade
A 1–9 grade prediction that updates as you practise, mapped through real grade boundaries.
Mastery tracking
Bayesian knowledge tracing + spaced repetition surface exactly what to revise next.
Timed mock exams
Full papers under exam conditions, auto-marked with a mark breakdown.
Study planner
A personalised revision schedule built around your exam timetable.
Progress reports
Clear reports on strengths, weak topics, and what to do about them.
All subjects & boards
Maths, Physics, Chemistry & Biology across AQA, Edexcel, CIE and IAL.
For tutoring companies & institutions
Run your whole team on one platform — invite educators, manage students by seat, and track every tutor's outcomes.
The reality
Traditional revision has three fatal flaws.
Most students work hard. Most students still underperform. The method is broken — not the student.
01
You run out of questions.
The average student exhausts available past paper questions weeks before their exam. Then they re-do questions they already know — which teaches them nothing.
Expandable Education generates an infinite supply of original questions on exactly the topic you need, every time.
02
You don't know what you don't know.
Without a system, students practise topics they're comfortable with and avoid the ones that scare them — the exact opposite of what improves grades.
Your Exam Readiness Score tracks mastery on every topic and automatically surfaces the ones that need attention.
03
Feedback comes too late.
Textbooks don't mark your work. Past papers sit unmarked for days. By the time a teacher returns it, the moment of learning has passed.
AI marks your answer within seconds — with specific feedback on exactly what went wrong and a full worked solution when you're ready.
Built on science
Not guesswork. Cognitive science.
The same research that powers Anki, Khan Academy, and university adaptive learning systems — now built into your revision.
Bayesian Knowledge Tracing
Every answer you give updates a hidden model of whether you truly know a topic — accounting for lucky guesses and careless mistakes. P(mastered) is more accurate than any percentage score.
Used by CMU & Khan AcademySpaced Repetition (SM-2)
Hermann Ebbinghaus proved that reviewing material at scientifically calculated intervals dramatically reduces forgetting. We track when each topic is about to fade from your memory and surface it at exactly the right moment.
Used by Anki & DuolingoItem Response Theory
Each question has a hidden difficulty parameter that adjusts based on how the whole student population performs. You're never served questions that are too easy or impossibly hard — always in your zone of proximal development.
Used in GMAT, GRE, SATYour subjects
AQA · Higher
GCSE Mathematics
82
Edexcel
A-Level Physics
54
AQA
GCSE Biology
41
Updates in real time after every question you answer
Your Exam Readiness Score. One number that tells the truth.
A composite 0–100 score per subject — combining topic coverage breadth, recent accuracy, mastery depth, and spaced-repetition retention. For GCSE students, it maps directly to a predicted 1–9 grade. It updates the moment you submit an answer.
No more guessing whether you're ready. No more false confidence from re-doing familiar questions. Just a clear, honest signal — and a map of exactly what to fix.
See your score→For students
Everything in one place. Nothing you don't need.
Questions that never repeat
Every question is generated fresh — original, never from a past paper. You can practise the same topic 100 times and get a different question every time.
Marked in under a second
Submit your working and get a verdict instantly — not from a simple answer check, but from AI that understands mathematical equivalence and method.
Your personal review schedule
The app tells you which topics to review today based on your forgetting curve. Revision becomes a daily habit, not a panic.
Live predicted grade (GCSE)
See your predicted grade update after every question — from 1 to 9, Foundation or Higher. Know exactly how far you are from your target.
Know exactly where you stand
Topic-level accuracy, mastery tracking, and your Exam Readiness Score — updated live. No more guessing.
Handwritten working accepted
Draw or photograph your working. AI reads handwritten maths, marks it, and gives feedback — just like a real examiner.
No credit card · Ready in 30 seconds
For teachers
The marking never ends. Until now.
The average teacher spends 5+ hours per week marking. Expandable Education marks every student submission the moment they submit it — and shows you the results in one place.
AI marks every submission
Hours saved weeklyStudents submit, AI marks. You see the results — not the marking. Use that time for teaching.
Spot struggling students early
Every student's Exam Readiness Score is visible at a glance. At-risk students are flagged automatically — you intervene before the exam, not after.
Progress reports in one click
Our edgeAI writes a detailed, personalised progress report for any student in seconds. Parent-ready. Zero writing time.
Class setup takes 60 seconds
Share a 6-digit code. Students join themselves. No IT department, no CSV uploads, no waiting.
Weekly class digest, automatically
Fully automatedEvery Sunday, you receive a formatted class performance report — which topics are weak, who is at risk, who improved most. You do nothing.
How to get started
Create your class
Sign up free, create a class, and get a unique 6-digit join code. Under 60 seconds.
Students join themselves
Share the code in class or on your VLE. Students enter it and they're enrolled instantly.
Watch the data come in
As students practise, you see topic accuracy, readiness scores, and activity — live.
Get your Sunday digest
Every week you receive a class performance report automatically — no effort required.
No credit card · Works alongside existing tools
Pricing
Start free. Upgrade when you're ready.
Every student gets 10 free questions. Scholar gives you 100 AI-generated questions per month with full marking, analytics, and spaced repetition — from $10/month.
Explorer
$0/forever
- ✓10 lifetime AI-generated questions
- ✓Instant AI marking
- ✓Full worked solutions
- ✓All subjects & exam boards
Scholar
$10/per month
- ✓100 questions per month
- ✓Instant AI marking & feedback
- ✓Exam Readiness Score (0–100)
- ✓Spaced repetition schedule
- ✓Study planner
- ✓Weak topic tracking
Scholar Plus
$15/per month
- ✓175 questions per month
- ✓Everything in Scholar
- ✓Progress reports
- ✓Priority AI generation
- ✓Priority support — direct Discord access to the founder
View full pricing details · Secure payments via Paystack · Cancel anytime
For educators & institutions
Your institution live in minutes.
Not days. Not IT tickets.
Sign up, pay, and share two links. Teachers and students join themselves and get the right access automatically. No deployment, no CSV uploads, no waiting.
01
Set up your institution
Enter your organisation name and details, choose how many educator and student seats you need, and pay by card. The whole thing takes under 3 minutes.
02
Share two links
You get a teacher invite link and a student invite link. Forward them in an email or paste them on your VLE. That's your entire IT deployment.
03
Everyone is in — instantly
Teachers click their link, create an account, and get Educator Pro access. Students do the same and get Scholar access. No approval queues.
Teachers get
- ✓Per-student Exam Readiness Score — see who's at risk at a glance
- ✓Weak topic tracking — who's struggling and exactly where
- ✓One-click AI progress reports — parent-ready in seconds
- ✓Automated weekly class digest email every Sunday
- ✓Full student drill-down — every question, every attempt
Students get
- ✓AI-generated exam-standard questions
- ✓Instant AI marking with step-by-step feedback and partial credit
- ✓Exam Readiness Score — 0 to 100, live, per subject
- ✓Spaced repetition schedule — the right topics at the right time
- ✓Adaptive difficulty — harder as you improve
Individual educator
One educator, your own classes — up to 60 students. Self-serve, no sales call.
- ✓Student performance dashboard
- ✓Per-student Exam Readiness
- ✓Automated weekly digest
- ✓One-click progress reports
- ✓All subjects & exam boards
Institution
Volume pricing: $10 → $8 → $6/student as you scale
Buy exactly the seats you need. Annual billing = 2 months free.
- ✓Invite educators by seat — each runs their own students
- ✓Student seats with volume discounts
- ✓Per-educator analytics & outcomes
- ✓Centralised billing, one invoice
- ✓Self-serve — live in minutes
Payments secured by Paystack · Cancel anytime · GDPR compliant
Get started today
Your exam doesn't move. Your revision should.
Every week you practise with Expandable Education, your Exam Readiness Score climbs. Every week you don't, it doesn't. Start with 10 free questions — no card, no commitment.
Students: 10 free questions, no credit card · Schools: live in under 3 minutes