The complete study companion for OCR A Biology A-Level
Built by Stem Cell Tuition — your OCR A examiner and teacher. 9 years of past papers + full mark schemes, 23 detailed workbooks, over 5,000 real exam questions and mark scheme points.
Free to start · No credit card · Made for OCR A students
Why students trust BioBud
Every answer, quiz and roadmap is grounded in real OCR A material — not generic biology from the internet.
Indexed and cited so every answer matches what examiners reward.
Detailed teacher workbooks covering every spec point in Paper 1.
Daily quizzes, topic quizzes and tutor answers all draw from this bank.
Everything you need to hit an A
Personalised, exam-specific and built around how you actually revise.
AI Tutor with photo questions
Snap a photo of any exam question and get a mark-scheme-perfect answer with citations from your workbooks.
Daily Quiz + Topic Quizzes
10 questions a day to feed your axolotl, keep your streak, and lock in every spec point.
Personalised A-grade Roadmap
A 6-week plan that adapts to your weakest topics and your target grade.
Mastery Heatmap
See exactly which chapters are A-grade and which need more work — at a glance.
Revision Bank
Save any tutor answer, quiz question or note to a personal bank you can revisit any time.
How it works
Tell us your target grade.
Feed your axolotl, build your streak.
Use the tutor and roadmap to hit your A.
Start studying smarter today
Join students using real OCR A material and an AI tutor that actually knows the spec.