Turn your lectures and slides into flashcards
From a recorded lecture or an uploaded PDF, PPTX or DOCX, Notibo generates flashcards automatically, and spaced repetition schedules them so they come back until you know them. You do not write the cards. Flashcards from recordings, folder-wide decks and spaced repetition are Pro; on Free, each uploaded document makes up to 10 cards.
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What a deck looks like
A recording usually gives a deck of ten to fifteen cards covering the key concepts, facts and relationships in the lecture: a specific question on the front, a short answer on the back, in the language the lecture was held in. Below is an example card; press Show answer to turn it.
When does a price cut raise total revenue?
Show answer
Only when demand is elastic, that is when elasticity is greater than one in absolute terms.
How review works
ProAnswer the card in your head, show the answer, then rate yourself: Again, Hard, Good or Easy. Notibo schedules with SM-2, the classic spaced-repetition algorithm: a card you get right comes back after a day, then six days, then at growing intervals; Hard shortens the growth and Easy stretches it; Again starts the card over tomorrow.
Notibo is not a replacement for a dedicated flashcard app; it makes the cards for you from the lecture. The review queue is there so the cards you already have come back at the right time.
Why cards on a schedule beat rereading
A landmark review of ten study techniques rated only two as high utility, spaced practice and self-testing, ahead of rereading and highlighting (Dunlosky et al., 2013).
Across classroom studies, spacing your practice beats cramming the same material in one sitting (d = 0.54, Mawson & Kang, 2025), and a 2021 meta-analysis found the same for self-testing spread over time rather than done at once (g = 0.74, Latimier, Peyre & Ramus, 2021). Each Notibo card is a self-test, and the schedule does the spacing.