Cognito vs Revision Dojo: A full comparison for IB and international students

Cognito and Revision Dojo both help students prepare for exams, but they cover different parts of the picture. Revision Dojo is an IB-focused platform built around a practice question bank, study notes, flashcards, and an AI tutor called Jojo. Cognito is a full study platform that covers IB alongside GCSE, IGCSE, A-Level and AP, with animated video lessons paired with notes and built-in active recall.

Cognito is designed to be an all-in-one platform that supports you from learning the content, to remembering it, to knowing how to apply it in your exams. So when you sign up, you can add all of your subjects to your dashboard, ready to go, as you can see below.

Each subject is broken down into sections and subtopics, all mapped precisely to your specification. That means you only ever learn what you actually need to know for your paper, and you can see at a glance what's left to cover.

Each topic has a short video lesson and/or beautifully designed revision notes, and some have a little cheat sheet that summarises everything on one page. It's good for last-minute revision, or printing out and sticking on the wall.

Once you've learned a topic, you can build your own quiz mixing any set of topics you've covered. Cognito uses spaced repetition and interleaving to decide what to bring back and when, adapting to how you're doing. These are the two study techniques with the strongest evidence base in cognitive science.

And when you're ready for exam-style practice, you can work through real exam questions with typed answers. Then either self-mark against the mark scheme point by point, or use AI marking to check your answer against the examiner's points.

A feature-by-feature summary of how the two platforms compare.

Revision Dojo is an IB-focused revision platform covering the IB Diploma and Middle Years Programme (MYP). It combines a practice question bank, study notes, flashcards, walkthrough videos and a mock exam builder, all powered by an in-house AI tutor and coursework grader called Jojo. Free tier plus paid Plus and Pro plans.

Strengths. Revision Dojo has genuine depth in IB. The AI coursework grader gives rubric-level feedback on Internal Assessments, Extended Essays and Theory of Knowledge essays, which is the sort of feedback IB students usually only get from teachers. Jojo AI is trained on IB curriculum content, and the platform reaches 600,000+ students in more than 180 countries.

Where it's less strong. Coverage is IB and MYP only, so it isn't relevant for GCSE, A-Level or AP. The platform is self-disclosed as not endorsed by the IBO. And the headline monthly prices are billed on a two-year commitment, so the effective entry cost is higher than the monthly figures suggest.

Honestly, the best move is to find what works for you, and it doesn't have to be all or nothing.

What's great is that Cognito's videos and notes are free across every subject, with weekly caps on flashcards and exam questions, so you can try it any time. Revision Dojo has a free tier before the paid subscriptions kick in.

Broadly, Cognito will be a better fit if you're studying GCSEs, IGCSEs, A-Levels, IB or AP and want video teaching plus notes plus AI-marked practice in one place. Revision Dojo is worth a look if you're doing the IB specifically and want IB-focused AI marking.