Inkstone: PDF to AI Flashcards

Inkstone is the beautiful, AI-powered flashcard app that helps you learn faster and remember longer — whether you're preparing for a major exam, picking up a new language, or earning a professional certification. Start instantly with 140+ expertly written decks (13,900+ cards) across 8 fields, or turn any PDF or pasted notes into a custom deck in seconds. Every review is scheduled by a proven spaced-repetition engine, so you see the right card at exactly the right moment — and an AI tutor is one tap away whenever something doesn't click. WHY INKSTONE • 140+ expert decks, 13,900+ cards — ready to study right now • Smart spaced repetition (FSRS) for maximum retention in minimum time • AI Tutor — tap "AI Explain" on any card for a clear, patient explanation • Create your own decks — upload a PDF or paste notes and let AI build the cards (OCR handles scanned pages and formulas) • Import your Anki decks (.apkg / .csv) — images, audio, cloze and image occlusion supported • A calm, warm notebook design that makes studying feel good • Your progress syncs across devices LEARN ANYTHING • Languages — Spanish, French, German, Japanese, Korean, Italian, Chinese (HSK), Portuguese, Russian, TOEFL & IELTS • Medical & Nursing — USMLE Step 1 & 2, NCLEX, MCAT, anatomy, physiology, pharmacology, pathology • Test Prep — SAT, ACT, GRE, GMAT, LSAT, AP exams, GED • Certifications — Bar Exam, CPA, CFA, PMP, Series 7, CompTIA, AWS, CISSP • Science & Math — biology, chemistry, physics, calculus, statistics, linear algebra • Humanities — history, economics, psychology, philosophy, sociology HOW IT WORKS 1. Pick a deck — or create one from your own material 2. Study with active recall: see the question, recall the answer, rate how well you knew it 3. Inkstone schedules each card for the perfect time to review 4. Stuck? Ask the AI tutor and keep moving Inkstone is free to download and start studying. Inkstone Pro unlocks the AI tutor, unlimited Anki imports, and every premium deck. Learn more, remember more — with Inkstone. --- Every claim matches the actual app (140 decks/13,912 cards, FSRS, AI Explain, PDF→deck with OCR, Anki import with image occlusion, progress sync, Pro tier). — Inkstone Pro Subscription — Inkstone Pro is an auto-renewable subscription (Monthly / Annual / Lifetime). Payment is charged to your Apple ID at confirmation of purchase. It auto-renews unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple ID settings. Terms of Use (EULA): https://inkstonecard.xyz/terms Privacy Policy: https://inkstonecard.xyz/privacy