Cerebri

Cerebri turns any study material into flashcards in seconds, using Apple
Intelligence right on your device. No cloud AI, no account, and nothing you
import is ever sent to us. Every PDF, photo of notes and class recording is
processed on-device.

CAPTURE ANYTHING
Import a PDF or Word doc, snap a photo of handwritten notes, or drop in a lecture
recording. Audio and video are transcribed and turned into a flashcard deck
automatically, all on-device.

STUDY SMARTER WITH SPACED REPETITION
The proven SM-2 algorithm schedules each card just before you'd forget it, and
per-deck mastery shows what you've learned. Miss a card and it comes back later
in the same session.

AN AI TUTOR WITH NO USAGE CAP
Miss a card? Get a clear 2–3 sentence explanation instantly. Want to go deeper?
Chat with a tutor that knows your entire deck: unlimited questions, on-device,
no per-query fees.

BRING YOUR DECKS
Import from Anki (.apkg and .colpkg), Quizlet exports, CSV or plain text. Group
decks into folders and find any deck with search. Export to CSV, tab-separated
text or a printable PDF study sheet.

PRIVATE BY DESIGN
There is no Cerebri server. Your decks stay on your device, and iCloud sync, if
you keep it on, stores them in your own private iCloud. Cerebri works offline.

ONE PAYMENT. YOURS FOREVER.
One purchase unlocks everything, permanently. No subscription, no per-scan fees,
no AI usage limits.

Free: manual card creation, unlimited decks, card-flip study, PDF and Word
flashcard creation, the tutor explanation after a wrong answer, folders, imports,
exports and iCloud sync.

Premium (one-time purchase): SM-2 spaced repetition with per-deck mastery,
flashcards from photos, audio and video, and the unlimited AI tutor chat.

AI features require a device with Apple Intelligence.