Preparing your learning space…
Preparing your learning space…
Free daily practice · An AI tutor that explains every step · Timed Core/Extended paper practice
Work through expert-written questions aligned to Core and Extended Cambridge IGCSE Mathematics skills.
Get instant, step-by-step explanations the moment you get stuck — no waiting for a teacher.
See your practice trend turn into a study estimate, so you know which topic to review next.
Revise on your phone, tablet, or laptop — even offline, between classes or on the bus.
Your practice adapts to you, putting more questions in front of the topics you find hardest.
Begin with free questions every day. Upgrade any time for unlimited and timed practice.
Yes — you can start for free with daily practice questions and progress tracking, no payment needed. Upgrade to Premium any time for unlimited questions, timed paper practice, and the AI tutor.
Expert-written practice questions aligned to Core and Extended 0580 skills, an AI tutor that explains every step, timed non-calculator and calculator practice, flashcards with spaced repetition, a study roadmap, and practice-only grade estimates that update as you practise.
International school students preparing for Cambridge IGCSE Mathematics (typically ages 14–16), plus the parents and teachers supporting them. Whether you're aiming to pass or chasing a top grade, your practice adapts to your level.
Tap Start Free Practice, create your free account, and begin answering questions right away. Your progress saves automatically so you can pick up where you left off on any device.
Yes. Koydo works in your browser and on the iOS and Android apps, so you can revise on your phone, tablet, or laptop — including offline, between classes or on the go.
Premium is $7/month billed annually ($84/year) and comes with a 7-day free trial. You can cancel any time, and payments are handled securely.