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For IB Students

Work smarter,
not harder.

FourtyFive is the personalized revision platform built for the IB. AI tunes every question to you — so every minute of revision counts.

Aligned to current syllabus Used by 12,000+ IB students
Predicted grade
LEVEL 6
Last 8 sessions
Weekly reach
22 / 40
5-day streak
AI Feedback
Excellent application of the chain rule — but the substitution at step 3 lost a sign. Level 6.
Calculus · Differential equations
Built for the IB

Everything you need
to revise smarter.

Six things that make FourtyFive different from another generic question bank.

Personalized Revision
Our algorithm learns how you learn — and gives you the right question at the right time.
Real IB-Style Questions
Practice with thousands of past-paper style questions mapped directly to the syllabus.
Answer Your Way
Use your Apple Pencil, digital tablet, or keyboard — just like the real exam, or however you prefer.
AI Feedback, Instantly
Every answer is marked by an AI trained like an IB examiner — with detailed feedback and explanations.
Track Streaks & Goals
Set weekly targets, build your study streak, and stay motivated with real-time progress tracking.
Smart Analytics
See your strongest and weakest topics, predicted level, and revision trends — all in one dashboard.
See it in action

The 60-second
product tour.

Watch how a student rates a topic, runs through real IB-style questions, and gets examiner-level feedback in under a minute.

fourtyfive.org/app
01/01
Real product · 28-second walkthrough · no audio needed.
FAQ

Questions,
answered.

Can't find what you're looking for? Email our student team — we usually reply same day.

What is FourtyFive?

FourtyFive is an AI-powered revision platform built specifically for the IB Diploma Programme. It generates a personalized study plan from your topic ratings and your real answers, then keeps adapting as you practice.

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 You'll never practice on out-of-date material.

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.

What is FourtyFive?

Answer text here.

Answer your way

Pencil. Tablet.
Keyboard. Whatever.

Hand-write with your Apple Pencil for the full exam feel. Or type. We mark it the same either way.

Apple Pencil iPad Wacom Keyboard
f'(x) = 3x² + 2x ∫f(x) dx = x³ + x² + C Answer: x = 4
type to answer
Q1 · 8 marks Calculus

If only 60 meters of fencing material is available, determine the dimensions w × l that maximize the enclosed area.

2w + l = 60 → l = 60 − 2w
A(w) = w(60 − 2w) → A'(w) = 60 − 4w = 0
w = 15, l = 30
Examiner feedback
7 / 8 Level 6

Optimization set up cleanly — derivative correct. Lost 1 mark for not verifying the maximum with the second derivative test.

M1 A1 A1 R0
AI Feedback

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
12,000+
Students revising
8,400+
Past-paper questions
32
IB subjects covered
0.4s
Average mark turnaround
Why students stay

"I went from a predicted 4 to a 6 in three months. The personalized question feed actually feels like it knows what I'm bad at — which, honestly, is uncomfortable but works."

Maya R.
IBDP — Math AA HL

Your IB. Your pace.
Your platform.

Free to start. Free to explore. Upgrade only when you're ready.