Cognito

What Cognito is

Cognito is a free revision platform for GCSE, A-Level, IB, and AP exams. The site states it is used by a large number of students across many countries, who on average improve by a couple of grade levels, with video lessons, notes, questions, flashcards, and exam questions in one place.

What you can do with it

You pick your course and work through free video lessons, revision notes, practice questions, and flashcards, with exam-style questions to test yourself. The page covers a wide range of subjects — sciences, maths, languages, humanities, and more — so most exam students can find their syllabus in one spot.

Who it is for

The audience is secondary and pre-university students sitting major external exams, and self-learners who want structured, free revision. It fits exam preparation more than open exploration.

A few things worth knowing

Free, comprehensive revision in one place is a strong offer, and the stated grade improvement is a benchmark, not a promise for any one student. The caution is the usual one: use the explanations to learn, then do the questions unaided, and check your institution's rules before any submitted work is produced by a tool. For anything graded, your own understanding is what the exam tests.

Why questions beat videos

Watching a lesson feels like progress; answering a question proves it. The tool's value is the practice loop, so spend more time on the questions than the videos.

What to check before relying on it

Confirm your exact syllabus is covered and current, since exam specs change. For graded work, use the help to understand, then write submissions yourself.

Studying with it well

Spend more time on the questions than the videos, because answering proves understanding while watching only feels like progress. Use the explanations to learn, then do the questions unaided, and check your institution's rules before any submitted work is produced by a tool. Confirm your exact syllabus is covered and current, since exam specs change, and pair the help with your own notes. The free, comprehensive revision is a strong offer; the learning is still your work, and the exam tests your understanding, not the tool's.

Using questions over videos

Spend more time on the questions than the videos, because answering proves understanding while watching only feels like progress, and use the explanations to learn, then do the questions unaided. Check your institution's rules before any submitted work is produced by a tool, and confirm your exact syllabus is covered and current, since exam specs change. The free, comprehensive revision is a strong offer, but the learning is still your work, and the exam tests your understanding, not the tool's, so pair the help with your own notes and write submissions yourself.

If the person using it is under 18, do not upload their private details or school records unless you are authorized to collect and store that data.