Notes
Your material, rewritten as notes you can actually revise from.
The hippocampus consolidates short-term memory into…
Study that sticks
Cognaby turns your notes, slides and PDFs into short daily sessions, and brings each card back just before you would forget it.
What you still remember, one month after you learn it
Read once Reviewed four times
Each dot is one short review, on days 1, 3, 8 and 21. Every review takes it back to full, and the fall afterwards is slower every time.
The methods
All written from your own material in seconds. Read it, be asked it, say it back. Each one asks for the answer a different way.
Notes
Your material, rewritten as notes you can actually revise from.
Quiz
Long-term potentiation strengthens a synapse by…
Flashcards
Which part of the brain moves short-term memories into long-term storage?
Gap Fill
Damage to the impairs the formation of new memories.
Explain
In your own words: why does testing yourself beat re-reading?
Walkthrough
Worked through a step at a time, with the reasoning shown.
Podcast
Two hosts talking your topic through, for the walk to college.
Cognaby vs ChatGPT
A brilliant assistant, and the wrong tool for a course: it answers from everything it has ever read, so you cannot tell which parts your exam tests. And it answers so you don't have to. Pulling it back out of your own head is the step that makes it stay.
Source
CognabyTeaches what your course needs you to know, from your own notes and slides
ChatGPTScrapes its answer from everywhere it has read, on or off your syllabus
Timing
CognabyShows each card right before you'd forget
ChatGPTHas no spaced repetition at all
Effort
CognabyMakes you recall it yourself, which is what makes it stick
ChatGPTHands you the answer, and you forget it
Progress
CognabyTracks what's sticking, set by set
ChatGPTKeeps no record of what you have learned
Marking
CognabyReads the idea in your own words and names what you missed
ChatGPTAgrees with whatever you write
One at a time
CognabyShows one card, then the next, and finishes
ChatGPTGives you a wall of text to wade through
ChatGPT Plus
$20/ month
A chat box you have to prompt.
Cognaby Pro
$9.58/ month
Less than half the price, from $2.21/week. 10× the monthly room and 150 written answers marked a day.
How it works
01Add your material
Slides, a lecture PDF, or notes you pasted in. Seven ways to study it, written from your own material, usually in a minute or two.
02Answer in your own words
Write it as you would say it. Cognaby reads what you meant, then names the one piece you left out.
03Come back on the right day
Each card returns at the moment it is about to slip, so a week is a few short sittings rather than a nightly obligation.
A month in
Every set, in four bands
How much you have met, how much is holding, how much is fully yours. It only ever fills up, so a bad week takes nothing back.
Quizlet and Anki
Import your Anki and Quizlet decks in one tap. Every card intact, and each one comes back right before you would forget it.
FAQ
Five minutes today sets up your first review. Studying is free forever.