Forty5
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For IB Diploma students

Every point counts toward 45.

Five-minute lessons and timed mock papers for 38 IB courses, at SL and HL.

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  • Free to start
  • No card needed
  • 14-day refund
Courses
38
Lessons
1,193
Key terms
3,742
A multiple-choice question with an explanation
The Forty5 learning path for Business Management SL, with the streak, XP and hearts at the top
English A: Language and LiteratureEnglish A: LiteratureTurkish A: LiteratureArabic A: Language and LiteratureEnglish BSpanish BFrench BGerman BArabic BMandarin BSpanish ab initioFrench ab initioMandarin ab initioArabic ab initioBusiness ManagementMathematics: Applications and InterpretationMathematics: Analysis and ApproachesEconomicsPhysics
ChemistryBiologyEnvironmental Systems and SocietiesPsychologyGeographyComputer ScienceHistoryGlobal PoliticsSports, Exercise and Health ScienceDesign TechnologyPhilosophyDigital SocietySocial and Cultural AnthropologyVisual ArtsMusicFilmTheatreTheory of KnowledgeExtended Essay

Sound familiar?

The IB is hard. Studying for it shouldn’t be.

  1. Six subjects, three core components and notes the size of a phone book.

    We cut every course into five-minute lessons, one syllabus point at a time.

  2. You read your notes for hours. A week later, it’s gone.

    Missed questions come back after 1, 3 and 7 days, until they stick.

  3. You find out where you lose marks on exam day. Too late.

    Timed mock papers, marked unit by unit, with an estimated 1–7 grade.

  4. A good IB tutor costs around $100 an hour, for one subject.

    Forty5 Plus covers all 38 courses for $33.33 a month.

  5. Motivation is gone by November.

    Streaks, daily quests and XP turn five minutes a day into a habit.

How the Diploma is scored

Six subjects. Seven points each. Three from the core.

Forty5 is built around what earns those points: command terms, calculations and the key terms examiners look for.

  1. Group 1 Studies in language and literature7
  2. Group 2 Language acquisition7
  3. Group 3 Individuals and societies7
  4. Group 4 Sciences7
  5. Group 5 Mathematics7
  6. Group 6 The arts, or another subject from groups 1–47
  7. Core TOK and the Extended Essay+3

How it works

From first lesson to exam day.

  1. 01

    Choose SL or HL. Follow the path.

    A placement test skips what you know. The path always shows what is next.

    The Forty5 learning path for Business Management SL, with the streak, XP and hearts at the top
  2. 02

    One syllabus point in five minutes.

    A short explanation, then exam-style questions and worked calculations.

    A multiple-choice question with an explanation
  3. 03

    Mistakes come back until they stick.

    Missed questions return after 1, 3 and 7 days. Flashcards keep key terms fresh.

    The practice tab with mistake review, exam mode and flashcards
  4. 04

    Sit a mock paper before the real one.

    Timed, marked unit by unit, with an estimated 1–7 grade.

    A marked mock paper: 8 out of 10, an estimated grade of 7 and a score for each unit

Built for how IB students study.

Five-minute lessons

One syllabus point, then exam-style questions.

Real SL and HL courses

Separate courses. No HL-only material in SL.

The app in 10 languages

Menus and guidance in your language. Questions in the exam’s language.

Spaced review

Missed questions return after 1, 3 and 7 days.

Formula guide

Every formula, linked to the questions that use it.

Mock papers

Timed papers with an estimated 1–7 grade.

Forty5 vs a private tutor

One tutor hour a week, or every subject every day?

Private IB tutor1 subject, 1 hour a week about $433a month
Forty5 PlusEvery course, annual plan $33.33a month

13× less than weekly tutoring in a single subject.

Private tutorForty5 Plus
Cost$80–130 an hour$33.33 a month
SubjectsUsually oneAll 38 courses, SL and HL
WhenWhen you can book themAny time, five minutes at a time
Between sessionsHomework, if it gets doneDaily lessons, review and mock papers
ProgressThe tutor’s impressionA grade estimate for every unit

Already have a tutor? Keep them for essays and one-to-one help. Forty5 does the daily practice that makes every tutor hour count.

Tutor rates are typical published prices for qualified IB teachers, 2025–26. In-person tutors in Dubai and London often charge more.

10 languages

Study in your language. Score in the exam’s.

Most IB students learn in a second language. Forty5 speaks yours.

  • English
  • Türkçe
  • Español
  • Français
  • Deutsch
  • العربية
  • 中文
  • हिन्दी
  • اردو
  • Русский

The app is in all ten. Lesson explanations are in English and Turkish today, and the rest are on the way.

Understand faster

Menus, guidance and feedback in your own language, so nothing gets lost in translation.

Learn the exam’s words

Key terms always appear in English beside the translation: the words examiners look for.

Practise like the real thing

Questions and mock papers stay in the exam’s language, exactly as on exam day.

Hear it spoken

Language courses read questions aloud, so you learn how words sound, not only how they look.

No risk

Try it first. Pay only if it works.

IB families already pay a lot. This is what makes Forty5 safe to try.

Free lessons, no card

The first unit of every course is free, plus the first lesson of every other unit.

14-day money back

Not for you? Ask within 14 days of any payment for a full refund.

Secure checkout

Payments are handled by Paddle. Forty5 never sees your card.

Cancel anytime

Cancelling stops renewals. Plus stays on until the end of the period you paid for.

Safe for teens

No ads, no chat, no strangers. Under-16s need a parent’s approval.

Made for the IB

Separate SL and HL courses, unit by unit, with the IB’s command terms.

Forty5 Plus

Every course for $33.33 a month.

With the annual plan, billed $399.99 a year. That is 32% less than paying monthly.

Compare plans

38 courses, and counting.

HL courses include every SL lesson plus the HL-only topics. Ab initio languages are SL only.

Studies in language and literature

Language acquisition

Individuals and societies

Sciences

Mathematics

The arts

The core

For parents

Calm, focused and safe.

No ads, no chat, no strangers. Students under 16 need a parent’s approval.

What parents should know

“Five minutes on the bus is five minutes closer to the exam.”

The idea behind every lesson.

Questions

Is Forty5 made by the IB?

No. Forty5 is an independent app that follows the current IB subject guides. It is not affiliated with or endorsed by the International Baccalaureate Organization.

Which subjects are covered?

38 courses so far, with separate SL and HL courses wherever the IB splits them. Ab initio languages are offered at SL only, and TOK and the Extended Essay are single courses. See the full list.

What language are the lessons in?

Questions stay in the language of the exam: English (in English B too), or Turkish in Turkish A: Literature, Spanish in Spanish B and Spanish ab initio, French in French B and French ab initio, German in German B, Mandarin in Mandarin B and Mandarin ab initio, and Arabic in Arabic A: Language and Literature, Arabic B and Arabic ab initio. The app itself is in ten languages: English, Turkish, Spanish, French, German, Arabic, Chinese, Hindi, Urdu and Russian. Lesson explanations are in English and Turkish today, with the other languages on the way, and key terms are always shown in the language of the exam.

Who writes the content?

Every lesson is original and written against the subject guides. IB teachers are reviewing it, and each question has a “Report a problem” button.

All questions

Start with the free lessons today.

Free to start. No card needed.

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