For learners

Your syllabus, your past papers, your mistakes.

Read the lesson, try it for yourself, then answer real exam questions on that exact topic — and see which marks you dropped and why. Nothing to install, and no account needed to look around.

Lessons
2,414
Exam questions
10,323
Interactives
250
Subjects
6
A study session

Three steps, then do it again tomorrow.

  1. 01

    Find tonight’s topic

    Open your course and pick the lesson, or go straight to the question bank and filter it to the topic you are revising.

  2. 02

    Learn it, then move it

    Notes with worked examples and flashcards, plus 250 simulations you can drag and break until the idea sticks.

  3. 03

    Practise and fix

    Answer real past-paper parts, see the marking point by point, and come back to the ones you missed.

Question Bank

Practise what you keep getting wrong.

10,323 past-paper parts, sorted by topic and difficulty. Filter a bank once and the filter follows you into the paper, so Next always gives you the kind of question you came for.

  • Filter by topic, difficulty, paper and your own results
  • Answer on screen the way the exam asks — typed, drawn or handwritten
  • The solution and the marking points sit on every question, folded shut until you want them
Open the question bank
Ask AI

Ask the small question you actually have.

Ask AI opens beside the lesson or question you are on and already knows what you are looking at. It explains the step, sets you another to try, and marks written answers against the mark scheme.

  • It answers about the page in front of you, not in general
  • Marking lists each point of the scheme and whether you earned it
  • A free account gets 7 AI markings and 3 Ask AI questions a week; Pro includes AI without setting up a key
Open Ask AI
What it costs

Free to start. Pro when you want every lesson.

Every question bank and interactive is free, and so is the first 60% of every course. Pro opens the rest and adds AI that works out of the box.

Free

$0forever

All the practice, and most of every course.

  • The first 60% of the lessons in every course
  • Every question bank and past paper
  • Every interactive
  • My notes, points, streaks and progress
  • 7 AI markings and 3 Ask AI questions a week, with an account
Sign up free

Pro

Every lesson · AI included

$11.89/ month

Every lesson, and AI that just works.

  • Everything in Free
  • Every lesson in every course
  • AI tutor included
  • AI marking included — written and handwritten answers
Start with Pro
Questions

Before you start.

What is Sigma Learn?
A study platform with syllabus-mapped courses, past-paper question banks, interactive simulations and an AI tutor — for IGCSE, International A Level, AP, IB and SAT learners.
Do I need an account?
No. As a guest you can open every question bank and every interactive, and the first 60% of the lessons in every course; your progress is kept in that browser. A free account keeps your progress, points and whiteboards with you on any device.
How do I sign up?
Choose Sign up free, enter your name, email, a username and a password, and you are in. There is nothing to pay and no card to enter.
Which subjects are covered?
Mathematics, physics, chemistry, biology, computer science and economics.
Which devices does it work on?
Any modern browser on a laptop, tablet or phone. Handwriting works best on a tablet with a stylus.
How is my answer marked?
Choice, ordering, sorting and exact answers are marked instantly. Written, drawn and handwritten answers are marked by AI against the mark scheme.
What does the Free plan include?
Every question bank and interactive, the first 60% of the lessons in every course, notebooks and your progress, and 7 AI markings and 3 Ask AI questions a week. A guest gets the same without an account.

Start with tonight’s topic.

Open a course or a past paper now — an account takes a minute and keeps your progress.