learn smarter.remember forever.
biu is your smartest learning companion. It makes remembering effortless and fun, so reviewing never feels like a chore.
loved by 3,433+ learners building lasting knowledge
three steps, then it sticks forever.
add it
paste any link or upload a pdf, video, or photo of your notes.
biu breaks it down
a clear summary and a deck of flashcards, generated automatically.
remember it
a scientifically tuned daily quiz resurfaces each card right before you'd forget.
everything you need to make it stick forever.
the daily quiz that makes it stick
spaced repetition shows each card right before you'd forget. pick your ambition: spark, learn, practice, mastery.
the forgetting curve describes…
personalized flashcards
we use AI so that every item added generates personalized flashcards based on your preferences.
add anything
videos, links, pdfs, photos of notes. tap add and walk away.
ai tutor on your notes
ask, explain, quiz. grounded on your own material, not generic answers.
streaks that keep you climbing
track your progress day by day. each review adds momentum—and the longer you go, the higher you climb.
organise, then explore
library, favourites, and collections. explore finds new material too.
learners who finally reached new heights.
“i used to forget most of what i read within a week. biu's daily reviews finally made it stick. i actually remember things months later now.”
mmaya okonkwo
medical student
“i barely have ten minutes a day. biu fits into those tiny gaps and it adds up to real progress.”
ddaniel reyes
product manager
“i always fizzled out. the streaks keep me coming back. first study habit i've ever kept.”
ppriya nair
parent, part-time learner
start free. then earn more.
your 14-day trial is just the beginning. with our referral program, every friend you bring keeps you going for longer, only pay when trial ends.
start with 14 days free
full access from day one. no card, no payment up front.
refer a friend, get +7 instantly
the moment a friend signs up with your link, your trial jumps a week.
they quiz, you gain
for each day your friend does their quiz in their first 14, we add +1 to your trial, up to +7 more.
questions, answered.
start remembering what you learn.
free early access. no card needed. be first in when biu launches.
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