Medly AI vs Cognito
AI-powered exam tutoring vs video-based revision — a full comparison for Science and Maths students.
Medly AI vs Cognito: Full Comparison
Cognito and Medly AI are both popular choices for Science and Maths revision, but they use very different approaches. Cognito teaches through pre-recorded video lessons across KS3, GCSE, IGCSE, and A-Level. Medly AI provides AI tutoring, thousands of exam questions, and personalised adaptive learning across GCSE, A-Level, IGCSE, IB, AP, and SAT. Here's a full comparison.
Quick Comparison
| Medly AI | Cognito | |
|---|---|---|
| Teaching Method | AI tutoring + adaptive practice | Pre-recorded video lessons |
| Question Bank | Thousands of exam-style Qs, 14+ types | Exam Qs by topic + past papers |
| AI Marking | ✓ Annotated per-answer | ✗ Scores only |
| Handwriting Support | ✓ Canvas + auto-mark | ✗ Not available |
| Upload Any Paper | ✓ Upload & Mark any PDF | ✗ Not available |
| Adaptive Learning | ✓ Bayesian mastery model | ✗ Not available |
| Mock Exams | ✓ Medly Mocks — free, examiner-made, nationwide | ✗ Not available |
| Qualifications | GCSE, A-Level, IGCSE, IB, AP, SAT | KS3, GCSE, IGCSE, A-Level |
| Free Access | Free tier: Medly Mondays, free Learn Mode & textbooks, daily AI — no card required | Free videos + exam Qs |
| Pricing | £24.99/mo or £80 one-off until end of academic year | ~£10/mo (Cognito Pro) |
What Is Medly AI?
Medly AI is an AI-powered exam preparation platform built around interactive tutoring rather than passive video content. It covers GCSE, A-Level, IGCSE, IB, AP, and SAT exams across AQA, Edexcel, OCR, and CIE — so unlike video-only platforms, students don't need to switch tools when they move from GCSEs to A-Levels or beyond.
At its core is a pedagogical AI tutor with long-term memory that adapts explanations and difficulty in real time based on each student's responses. The platform includes thousands of exam-style questions across 14+ question types, a built-in handwriting canvas with auto-marking, and Upload & Mark — where students upload any exam paper or PDF for AI marking against specification points. A Bayesian adaptive learning system tracks mastery per topic and recommends what to study next, while Medly Mocks — free, examiner-made nationwide mock exams run like real exams with grade boundaries and a results day — make Medly the only learning platform in the UK offering realistic mock exams at scale.
What Is Cognito?
Cognito is a video-based revision platform covering KS3, GCSE, IGCSE, and A-Level students. It offers over 400 video lessons across Biology, Chemistry, Physics, and Maths, organised by exam board (AQA, Edexcel, OCR Gateway, OCR 21st Century, Edexcel IGCSE, and SQA). The platform provides over 100 courses covering different boards, tiers, and pathways, and now includes A-Level content for Biology, Chemistry, and Physics (AQA, OCR, CIE) as well as KS3 Biology, Chemistry, and Physics. Free access includes all videos, exam questions by topic, and past papers. Cognito Pro adds quizzes and flashcards. All videos are also available on YouTube.
Video Lessons vs AI Tutoring
Cognito's videos are well-produced and explain concepts in short, focused episodes. They are effective for initial exposure to new material.
Medly AI's pedagogical AI tutor creates a two-way interaction with long-term memory. Rather than delivering the same video to every student, the AI adapts in real time — adjusting explanations, questioning, and difficulty based on each student's responses. Students cannot progress without demonstrating understanding. The Learn flow delivers structured lessons with text, worked examples, and interleaved practice, building knowledge systematically before exam-style practice.
Exam Practice and Feedback
Cognito provides exam questions by topic and past papers with mark schemes. Cognito Pro adds quizzes and flashcards. Feedback is score-based — students see right or wrong but do not receive detailed per-answer annotations.
Medly AI offers thousands of exam-style questions across 14+ question types with multiple practice modes: full papers, lesson practice, custom sessions, and Upload & Mark. Every answer receives annotated AI marking showing which specification points were met, where marks were lost, and how to improve. The handwriting canvas means students can practise exactly as they will in the real exam. Medly Mocks are free, examiner-made nationwide mock exams run like real exams on specific days for specific subjects, with grade boundaries and a results day.
Adaptive Learning and Analytics
Cognito does not offer adaptive learning or a statistical mastery model.
Medly AI's Bayesian knowledge model tracks student ability per topic and recommends what to study next. The analytics dashboard provides weekly progress, 14-week activity heatmaps, streak tracking, per-subject mastery grids with A*–U indicators, and current vs target grade tracking. Every answer — whether on-platform or uploaded via Upload & Mark — contributes to this model.
Qualification Coverage
Cognito covers KS3, GCSE, IGCSE, and A-Level across four subjects. A-Level coverage is currently limited to Biology, Chemistry, and Physics. Cognito does not cover IB, AP, or SAT, so students preparing for international qualifications will need a different platform.
Medly AI covers GCSE, A-Level, IGCSE, IB, AP, and SAT. Students can use the same platform from GCSEs through sixth form and beyond, with consistent AI tutoring and adaptive learning throughout.
Pricing
Cognito's core video library and exam questions are free. Cognito Pro costs approximately £10/month. Some students have noted previously free features moving behind the Pro paywall.
Medly AI offers a generous free tier — including Medly Mondays (unlimited free practice for a subject every Monday), completely free Learn Mode and textbooks, and limited free daily premium AI usage — with no credit card required. Full access is £24.99/month or £80 one-off until end of academic year and includes AI tutoring, thousands of questions, handwriting recognition, Upload & Mark, adaptive learning, Medly Mocks, and a full analytics dashboard — features Cognito does not offer at any tier.
The Verdict
Cognito offers quality free video content for KS3, GCSE, IGCSE, and A-Level Science and Maths. Medly AI is a comprehensive exam preparation platform with AI tutoring, thousands of exam-board-aligned questions, handwriting recognition, Upload & Mark, Bayesian adaptive learning, Medly Mocks, and full analytics — covering GCSE through to A-Level, IB, AP, and SAT. For students who need more than video lessons to achieve their target grades, Medly AI provides the personalised, adaptive exam preparation that drives results.
Frequently Asked Questions
Does Cognito cover A-Levels?
Yes, Cognito now covers A-Level Biology, Chemistry, and Physics. However, it does not cover IB, AP, or SAT. Medly AI covers GCSE, A-Level, IGCSE, IB, AP, and SAT.
Can I practise handwritten answers on Cognito?
No. Cognito does not support handwriting input. Medly AI includes a built-in drawing canvas with state-of-the-art handwriting recognition that reads even bad handwriting, and auto-marking.
Does Medly AI have video lessons?
Medly AI teaches through interactive AI tutoring with a pedagogical AI tutor and structured Learn flow lessons — not pre-recorded videos. This provides a personalised experience that adapts to each student.
Can I upload exam papers to Medly AI for marking?
Yes. Upload & Mark accepts any exam paper or PDF. Results are matched to specification points and feed into your personalised mastery model.
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