Learn anything.
Remember it with AI flashcards.
Cogni keeps your study notes in one place, turns them into smart flashcards and schedules every review with spaced repetition, so you study less and remember more.
Why you forget, and how spaced repetition fixes it
Memory fades on a predictable curve. Re-reading fights it badly. Reviewing right before you forget beats it: each review makes the memory stronger and the next interval longer.

Within hours, the memory starts to fade. This is the Ebbinghaus forgetting curve, and it happens to everyone.
Right before you would forget, the card comes back. You rate it: Again, Hard, Medium or Easy.
1 day → 3 days → 1 week → 3 weeks → 2 months. Fewer reviews, stronger memory.
Paste a text. Drop a PDF. Get a deck.
Lecture slides, textbook chapters, your own notes. Cogni reads them and writes clear question-and-answer cards you can edit in one tap.
- ✓PDF, text, web pages and photos of notes
- ✓Cloze deletions, definitions, image occlusion
- ✓Review and edit every card before you save


All your study notes, in one place.
Lecture notes, summaries, textbook highlights. Write and organise them in a real editor with headings, bold, highlights, lists and images. Read them to study, or select any passage and turn it into flashcards without leaving the page. Cards stay linked to the note they came from.
See your memory grow.
Daily streaks, retention per deck, cards due tomorrow and a forecast of the weeks ahead. Enough to stay motivated, not enough to distract you.


Study on the bus. Finish on your laptop.
Web, iOS and Android stay in sync in real time. Review offline on the go and everything merges when you're back online.
Built for people with a lot to remember
“I dropped a 60-page pharmacology PDF in and had a deck before my coffee cooled. Passed the block two weeks later.”
“The intervals just work. I do 10 minutes on the train and my Spanish vocabulary actually sticks now.”
“Notes and cards in the same app means I stopped copying things twice. My history grade went from C to A.”
A review schedule that shows you each card right before you'd forget it, so intervals get longer as the memory gets stronger and you spend less time on things you already know. Spaced repetition app
Start remembering today.
Free to start. Your first deck takes about a minute.
