Deckiy turns your own notes into practice questions, then keeps coming back to whatever you haven't mastered yet.

Add your class notes, a study guide, slides or a vocab list. Deckiy reads it, pulls out the key concepts, facts and common misconceptions, and writes questions that make you think. Every new question is checked by a second AI before you see it, and anything that isn't backed by your material is thrown out.

ADD WHAT YOU'RE STUDYING
• Upload a PDF, Word document, PowerPoint or text file, or paste your notes
• Vocab lists in most common formats work too
• See what Deckiy understood: a knowledge map of your topics and how your ideas connect

QUESTIONS THAT MAKE YOU THINK
• Multiple choice with a near-miss answer that's almost right, so guessing doesn't work
• Passage questions you actually have to read
• Matching, ordering, fill-in-the-blank and typed answers
• Explain-in-your-own-words questions, graded for the ideas you covered and the ones you missed
• Instant feedback with the reason behind every answer, and "Explain more" when you want to go deeper

PRACTICE THAT ADAPTS TO YOU
• Deckiy tracks your mastery of every single concept
• Miss a key idea and the next question goes straight at it
• Reviews come back just before you'd forget them
• Weak spots on your home screen, one tap to fix them
• Review your mistakes any time

EXAM MODES
• AP: U.S. History, World History: Modern, European History, U.S. Government and Politics, Biology, Psychology, English Language, Calculus AB and other AP courses, with AP-style multiple choice and short-answer questions built around each course's skills
• Digital SAT: Reading & Writing and Math by section, domain and skill, with the Desmos graphing calculator for Math
• ACT: practice across every section in the ACT's style and timing
• Timed sections that follow the real exam structure

STAY MOTIVATED
• Daily goals, streaks, XP, levels and achievements
• XP rewards real effort, so rushing through doesn't pay
• Meet Deckiy, the blue gecko who cheers you on when you nail it

STUDY WITH FRIENDS
• Add friends and climb the weekly leaderboard
• Live study battles: invite up to 7 friends and race through the same questions
• Share a subject with a link so classmates can practice the same material

FAIR AND FREE
• Writing new questions uses Deckiy's AI energy, which refills over time
• Practicing questions you already have and reviewing mistakes never cost energy
• Study on the web too at deckiy.com/app with the same account

YOUR DATA
• Deckiy keeps the text of your study material, not the original files
• Download all your data or delete your account from Settings at any time

AP and SAT are registered trademarks of the College Board. ACT is a registered trademark of ACT Education Corp. Neither is affiliated with or endorses Deckiy.