Personalized IB revision with handwritten answers, algorithm-recommended questions and automatic AI marking.
Set up your account and answer a few quick questions so our algorithm can tailor your revision.
By hand or with your keyboard — our AI Examiner instantly marks your answers and gives you feedback.
Our spaced repetition algorithm learns from your every answer to help you work smarter, not harder.
Personalized
Revision
Based on your continuous performance, our smart recommendation algorithm pinpoints exactly what you need to work on—so you study smarter, not harder.
LEARN MOREAI Examiner
& Tutor
Chat with the AI tutor while you solve questions, then receive instant AI marking on your handwritten answers from our trained examiner AI — just like the real exam.
LEARN MORERealistic
Mock Exams
Sit timed IB-style papers with real conditions. Practice under pressure, work on your time management, fix your weaknesses, and walk into the exam hall fully prepared.
LEARN MORETRACK YOUR
PROGRESS
Track your accuracy, speed, and progress across every subject. Get a topic-by-topic breakdown of your strengths and weaknesses, review your full question history with answers and feedback, and see your predicted IB grade powered by our algorithm.
LEARN MOREWe've got you
covered in
six subjects.
(for now!) more to come soon.
Two ways in.
Same revision.
FourtyFive is iPad-first, but no device should be a paywall. Use it on iPad with Apple Pencil for the full handwritten-exam feel, or in your browser when you're on a laptop or school computer.
Designed first for iPad + Apple Pencil. Hand-write your working the same way you will in the exam hall
- Apple Pencil first-class
- Offline practice + sync
- Works on iPad 7 and newer
Works on any modern browser. Connect a writing tablet to answer like in an exam.
- Zero install
- Type or use a writing tablet
- Auto-syncs across devices
Aim higher.
Aim for (a) 45.
Stop revising blind. Let FourtyFive show you exactly what to work on next.
If only 60 meters of fencing material is available, determine the dimensions w × l that maximize the enclosed area.
A(w) = w(60 − 2w) → A'(w) = 60 − 4w = 0
w = 15, l = 30
Optimization set up cleanly — derivative correct. Lost 1 mark for not verifying the maximum with the second derivative test.
Marked like an
IB examiner.
Every answer is checked against the IB markscheme. You get a level, a band-by-band breakdown, and a worked solution that explains exactly where points were won or lost.
- Level 1–7 with markscheme rationale
- Worked solutions, not just answers
- Suggested follow-up topics in one click
Questions,
answered.
Can't find what you're looking for? Email our student team — we usually reply same day.
What is FourtyFive?
How is FourtyFive different from a normal question bank?
Most question banks dump questions on you. FourtyFive tracks what you’ve done, spots your weaknesses, and recommends the next best topics and questions to raise your score.
Which IB subjects does FourtyFive support?
FourtyFive is built for IB-style revision by topic and exam skills. Subject coverage depends on what’s currently live inside the platform, but the core experience is designed around IB markschemes and exam practice.
How does the personalised revision actually work?
It learns from your practice history and performance (topic mastery, accuracy, question types, and difficulty) to prioritise high-impact gaps—rather than letting you “revise what feels easy.”
Does it include an exam mode?
Yes. You can practise under exam conditions (timed, exam-style sets) and build the stamina and pacing you need for real IB papers.
How long until I see results?
Most students report a measurable shift in predicted level within 3–4 weeks of consistent use (about 20 minutes a day). 94% of students who completed at least one full topic loop improved by one level or more before mocks.
Do I get feedback on my answers?
Yes—FourtyFive is designed to give targeted feedback so you understand why you lost marks and what to change next time, not just “right/wrong.”
Does it work for the new IB syllabus?
Yes. Every question is tagged to the current syllabus and reviewed by IB-trained subject specialists when the IBO updates a course. You'll never practice on out-of-date material.
Can I answer by typing or handwriting?
Yes. The platform supports different answer modes so you can practise in a way that matches your real exam workflow.
Can teachers or parents access progress too?
Yes—FourtyFive can provide visibility for teachers/parents so support is based on real data (topics covered, weaknesses, consistency), not guesses.
Is FourtyFive good for DP1 or only DP2?
Both. DP1 is ideal for building topic mastery early; DP2 is where exam-mode practice and targeted gap-filling tends to move grades fastest.
How do I get started?
Start by picking your subject/topic (or take a quick diagnostic if available), do focused practice sessions, and follow the recommendations. Most students feel the difference once they stop revising randomly and start attacking their weakest marks first.
Want to have early access
to FourtyFive?
Be among the first to try FourtyFive, the AI-powered platform built to make IB revision more efficient. Get algorithm recommendations, real IB exam simulations, and powerful study insights.