Khan Academy is built for breadth: a free library covering every school subject, at every level. Maths Angel is built for the moment maths goes wrong: ChatCat names the exact mistake in a student’s working, then teaches the earlier skill behind it.
UK secondary maths, and nothing else. Expand −2(x − 5) as −2x − 10 and ChatCat says “you multiplied −2 by 5 and kept the minus”, then opens the lesson on multiplying directed numbers.
The lesson is picked off a map of 500+ connected skills that reaches back from GCSE to the primary maths underneath, so when the real problem sits earlier on the map, that earlier skill is what gets taught.
A non-profit library of recorded lessons and practice in every school subject, organised by US school grade, from early arithmetic to university calculus. However, after a wrong answer it shows the worked solution and moves on, whether or not your child is still stuck.
FreeKhanmigo $4 a month, US billing only
Khan Academy shows a worked solution and moves on. Maths Angel reads the working, names the exact slip, and teaches the earlier skill behind it. Built for UK exams, not US grades, so the GCSE question that has stopped them tonight gets properly fixed.
| Feature | Maths Angel | KKhan Academy |
|---|---|---|
| Getting unstuck | ||
| Instant help with any question (type or photo) | Yes | No1 |
| Names the exact mistake in the student’s working | Yes | No |
| Skill map: finds the earlier skill that’s missing | Yes | No |
| Points to the one lesson or practice that fixes it | Yes | Yes |
| Only unaided work counts towards scores | Yes | No |
| The lessons | ||
| Fully animated video lessons (not handwriting and voice) | Yes | No |
| Expert-crafted lessons, not AI | Yes | Yes |
| Full KS3, KS4 and GCSE/IGCSE maths (Years 6–11) | Yes | No |
| Real GCSE past-paper questions with mark schemes | Yes | No |
| Access and safety | ||
| Families can use it directly, no school licence | Yes | Yes |
| Free plan, no card | Yes | Yes |
| Child-safe: ad-free, on-topic, treats every user as a minor | Yes | Yes |
¹ Khanmigo, Khan Academy’s AI tutor, offers this in the US. It needs a US billing address, so a UK family can’t buy it.
More comparisons: Maths Angel vs IXL·Maths Angel vs DoodleMaths
Put tonight's question into ChatCat with their working. See the mistake named and the lesson that fixes it. A quick practice set then logs the repair on their skills profile.
