Simple pricing. Start free.
Two complete lessons are free in full — A1.1 Water and B1.1 Carbohydrates and lipids — and revision slides are free on every lesson. Pro unlocks the rest of the syllabus.
Everything you need to judge whether this is worth paying for.
- Two lessons open in full — A1.1 and B1.1
- Study notes, quiz, skills practice and exam papers on those lessons
- Revision slides on every lesson, all 4 themes
- Sit any paper a teacher shares with you by code
- No account required
- The other 38 lessons
- Full-syllabus practice exam
The whole syllabus — notes, questions and exam papers for every lesson.
- All 40 lessons — study notes, quizzes, skills practice, exam papers (37 live now, 3 landing soon)
- All 2,381 exam-style questions, each with a markscheme
- Every answer explained, with the misconception it's testing
- Full practice exam mixed from across the whole syllabus
- Paper 1A, 1B and Paper 2 in authentic exam format and timing
- SL and HL, with HL-only material kept out of SL papers
- Revision slides on every lesson
Build and share real papers from the free lessons.
- Paper generator in every format — quiz, 1A, 1B, Paper 1, Paper 2, either section, or hand-picked
- Questions drawn from the two free lessons
- Print papers and markschemes, or save as PDF
- Share codes — students sit the exact paper you built
- Revision slides on every lesson to use in class
- Questions from the other 38 lessons
Build papers from the entire question bank, for every class you teach.
- The full bank — all 2,381 questions, every published lesson
- Build papers spanning any topics and both levels
- Authentic mark counts and timings from the guide's paper specs
- Print the markscheme separately — lean answer key, or with full explanations
- Hand-pick individual questions and set their order
- Share codes rebuild any paper exactly, on any device
- Full study notes and revision slides for every lesson
Pricing isn't set yet
We're still deciding what Pro should cost. Everything listed as free above is genuinely free and available right now — start with it, and nothing will be taken away when Pro launches.
Questions
What you're actually getting
Which syllabus is this built for?
The 2023 IB Biology guide — first assessment 2028. Every lesson is written against the official guide's syllabus statements, and questions follow the data booklet's notation and required diagrams.
Are these real IB past papers?
No. They're original exam-style questions written to the real papers' structure, command terms and mark allocations, each with its own markscheme. Every question is tagged with the syllabus statement it assesses.
What exactly is free?
Two complete lessons — A1.1 Water and B1.1 Carbohydrates and lipids — with their notes, quizzes, skills practice and exam papers. Revision slides are free on every lesson in all four themes. Students can also sit any paper a teacher shares by code.
Do students need an account?
Not to start. You can study the free lessons and sit a teacher's shared paper without signing up. Progress is currently saved on your own device only — accounts and cross-device sync are coming.
How do share codes work?
A teacher builds a paper and gets a short code. Any student who pastes that code gets exactly that paper — same questions, same order, same timing — then marks their own work against the markscheme. No accounts, no files to email.
Do I see my students' results?
Not yet. A student who sits your paper marks their own work against the markscheme and sees their score immediately, but that score stays on their device — nothing is sent back to you. Teacher-side class results are the next feature we're building. Today the honest answer is that the share code gives your class the same paper and instant feedback, not a gradebook.
Is SL and HL handled properly?
Yes. Pick a level and the question bank respects it: HL-only material never appears in an SL paper, and HL-only lessons aren't offered at SL.