Revise smarter.
Grade up with Otto.
Notes, flashcards, 600+ real past papers marked instantly and your own AI tutor, built like a game so you actually come back tomorrow.
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Notes for every chapter
194 chapters across 10 subjects, with diagrams, worked examples and the exact phrases examiners want.
600+ real past papers
Answer on screen with a timer. Get marked instantly, see the mark scheme, and learn where you lose marks.
Topical tests
A quick test on any chapter, marked like the real exam, so you know what you actually know.
Flashcards that stick
Spaced repetition and quick-fire quiz mode with combos. Cards you miss come back sooner.
Streaks, quests and leagues
Daily quests, weekly leagues with friends, and Otto cheering you on. Studying, but make it a game.
Otto, your AI tutor
Stuck on a question? Ask Otto. Step-by-step explanations of any page, question or mark scheme.
Simple plans
Every new student gets 14 days of everything. After that, studying stays free.
Free
Everything you need to study
- Notes for every chapter, all subjects
- Flashcards with spaced repetition
- Daily quests, streaks, leagues and friends
- Reminders that keep you on track
Plus
Most popularPractise like the real exam
- Everything in Free
- Topical tests, marked instantly
- 600+ interactive past papers with mark schemes
- Timed exam mode, weak-topic insights, challenges
Pro
Your own AI tutor
- Everything in Plus
- AI tutor that explains any page or question
- Personal study coach
- Turn your own notes and slides into revision
See how they’re really doing
Follow your children or students: streaks, study time, test and past-paper scores, weak topics and days to exams, all on one dashboard. Parents can also set daily goals and subjects.
Questions
Is OttoStudy free?+
Yes. Notes for every chapter, flashcards, daily quests, streaks and leagues are free forever. Every new student also gets 14 days of everything free, with no card needed. After that, Plus (RM49 / month) adds topical tests and interactive past papers, and Pro (RM99 / month) adds Ask Otto, the AI tutor.
Which Cambridge IGCSE subjects does it cover?+
Biology 0610, Chemistry 0620, Physics 0625, Maths (Extended) 0580, English First Language 0500, ICT 0417, Additional Mathematics 0606, Business Studies 0450, Economics 0455, Accounting 0452.
Are the past papers real Cambridge papers?+
Yes. There are 600+ real Cambridge IGCSE past papers from 2019 onwards. You answer on screen (with a timer if you like), get marked against the official mark scheme straight away, and every question has a step-by-step explanation of how the marks are awarded.
How does the instant marking work?+
Numbers, multiple choice and short answers are checked automatically against the mark scheme. Longer written answers are marked by AI against the same mark scheme points, and you see exactly which marks you got and which you missed.
Can parents and teachers see progress?+
Yes, with a free parent or teacher account. You see streaks, study time, test and past-paper scores and weak topics. The student approves every link with a one-time code, and you never see their chats with Otto.