Duocortex vs Kern

Duocortex is the ultimate app designed by medicos, for medicos. Whether you’re preparing for exams, seeking mentorship, or just want a reliable study partner, Duocortex brings everything under one roof—smart, verified, and real-time

You spent ten hours reading a book. A month later, the sharpest ideas are fuzzy, the characters blur, and the moments that moved you are already slipping away. Kern keeps the books you finish alive. Pick a book you've read and it becomes a deck of sharp, swipeable cards. For non-fiction, Kern brings back the key ideas, examples, arguments, and surprising connections. For fiction, Kern revisits the characters, relationships, turning points, themes, motifs, and settings that made the story stay with you. Then spaced repetition takes over, bringing cards back as each book begins to fade. HOW IT WORKS 1. Search for a book you've finished, or pick one from the list. No uploads, highlights, or homework. 2. Kern creates a deck built to bring that specific book back to mind. 3. Spend five minutes a day. Cards from across your library come round together, and the books you've neglected come back first. KERN COMES TO YOU - Reminders that carry an idea. On days you don't open Kern, an idea from the book you're losing arrives at the time you choose. Press and hold it to see the whole card, then tap Got it without opening the app. - Home Screen widgets. Answer a card or a quick quiz, or see which book is fading, right on your Home Screen. - Lock Screen widgets. The book fading most, and how much of your shelf is still fresh. SHARE WHAT STUCK Turn any idea into a poster for your story or feed. Or challenge a friend: two claims from the book and one that's made up. Which one? FICTION AND NON-FICTION Fiction and non-fiction receive different kinds of cards because remembering a novel is not the same as remembering a business book. Fiction cards contain full-book spoilers and are intended for books you've already finished. Reminders, widgets and posters only use ideas that don't give the plot away, because anyone can see them. WHY READERS PICK KERN - Cards for both fiction and non-fiction - Your whole library in one feed - Interactive cards that check what actually stuck - Original, paraphrased cards, not excerpts and not a substitute for reading - Your library and progress come back on a new phone through iCloud - Review anywhere, offline once a deck is ready - No account and no sign-up THE WALL Every book you add lives on the Wall. Review it and it stays inked. Neglect it and you can watch it fade. Switch to a list once your library grows, sorted A to Z and split into fiction and non-fiction. No streaks, guilt trips, or leaderboards. Just an honest picture of what is still in your head. PRICING Your first book is free, with no payment required. Continue with Kern Plus for unlimited books, or unlock an individual book with a one-time purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. You can manage or cancel them in your App Store account settings. Terms of Use: https://kern.cards/terms Privacy Policy: https://kern.cards/privacy Read on.