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
- Notebooks, points, streaks and progress
- Ask AI and AI marking with your own Gemini key
For parents
Everything they need to revise, in one place you can trust.
Sigma Learn gives your child lessons that follow their syllabus, real past papers with honest marking, and help the moment they get stuck. It is free to start; there are no ads, and nothing is sold about them.
What they get
Less searching, more studying.
Revision time disappears into finding the right notes, the right paper and the right mark scheme. Here they are already together.
Honest marking
They see what an examiner would see.
Answers are marked against the real mark scheme, point by point. A wrong answer comes with the reason and the solution — so a mistake becomes the next thing to practise, not a guess at what went wrong.
- Marks shown per marking point, with the mark scheme alongside
- Wrong answers can be filtered and retried until they are right
- Points and streaks reward steady work, not cramming
Safety and privacy
Built for learners, with their data treated carefully.
What it costs
Free to start. Pro is optional.
Every past paper and interactive is free, and so is the first 60% of every course. Pro opens the rest of the lessons and adds AI that works without setting up a key.
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 — no key to set up
- AI marking included — written and handwritten answers
Following their progress
Guardian profiles.
A guardian profile, linked to your child’s account by us, is how you will follow their progress. The reports themselves are still being built — until they are ready, the simplest way to see how they are doing is to look at their question bank together: every paper shows what was right, partly right and wrong.
Ask about a guardian profileCan a parent see their child’s progress?
Guardian profiles, linked to a learner by us, are how that will work; reports are still being built. See for parents.
What do you store about me?
Your account details (name, username, email), and your learning data: answers, marks, points, streak and notebooks. The privacy page has the full list.
Do you sell my data or show ads?
No.
What is sent to the AI?
When you use Ask AI or AI marking, your question or answer and the lesson or question it is about are sent to Google Gemini to produce the reply.
Can I delete my data?
You can reset your learning data yourself in Settings. To delete the account itself, contact us and an administrator will remove it.
Give them a head start tonight.
A free account takes a minute. Sit with them for the first lesson.