Preparing your learning space…
Preparing your learning space…
Practice questions · an AI tutor that explains every answer · mock exams and flashcards
10 free questions every day — no card needed to begin.
Hundreds of questions across every subject, ready whenever you are.
Ask anything and get clear explanations and your next best step to study.
See your strengths grow and know exactly what to work on next.
On your phone, tablet, or laptop — practice even when you're offline.
Your questions focus on your weak spots, so every minute counts.
10 free questions every day. Upgrade for unlimited access.
Yes. You get 10 practice questions every day, score tracking, and flashcards at no cost. Premium unlocks unlimited questions, the AI tutor, full mock exams, and study rooms.
Practice questions across every subject, an AI tutor that explains each answer in plain language, timed mock exams, spaced-repetition flashcards, a knowledge graph that connects concepts, and live study rooms with other learners.
Anyone who wants to learn faster and remember more — students building skills, families studying together, and lifelong learners. Practice adapts to you, so it meets you wherever you are.
Tap "Start Free Practice" and answer your first questions right away — no payment needed. Create a free account to save your progress and pick up where you left off on any device.
Yes. Koydo works in your browser and on the iOS and Android apps, with offline practice and gentle daily reminders so a few minutes a day really add up.