Cirello

Spaced repetition, rebuiltYou forget.
It catches you.

Review straight from the real page - a book, a link, a photo. Blank on something and it's back in rotation before you close the tab.

FSRS-6 scheduling
the algorithm researchers use for memory
No streaks as pressure
Works from real sources
Biology1 / 5
Campbell Biology · p.42 · Ch. 3 · Cell structure
What organelle is the powerhouse of the cell?

The everyday loop.

Capture

Paste a list, drop in images, or link straight to the page you're reading. No forms, no fuss.

Review

A few minutes a day, scheduled by FSRS-6 - the same class of model researchers use for real memory.

Repair

Blank on something? It's offered right back to you, on the spot - the deck fixes itself.

Sound familiar?

"You highlight half a book, then never see those highlights again."

The problem with every note-taking app that isn't built to bring things back.

Not another deck to maintain.

Real source, real review

Cards can prompt straight from a book, page, or link - not just typed text.

A streak that doesn't punish

A quiet, growing plant - it fades on a skipped day, never resets to zero.

Catches what you miss

Blank on a card and it's offered right back to you, on the spot.

Capture anything

Books. Web pages. Photos.
Notes you scribbled yesterday.

BooksNotebooks & copybooksWeb pages & linksLecture notesVocab listsPhotos on your cardsPDFs & articlesAnything else you're reading
No pressure, ever

Review, without the guilt.

No confetti when you finish. No shame when you skip a day. Your streak is a small plant that grows when you show up - and just quietly fades, never resets to zero, when you don't.

Day 1
Day 5
Day 14
Missed a day
1Tell it what you're learning
2Get starter decks, ready to go
3Walk through your first real review
First run

The app teaches itself.

A short survey, a couple of starter decks, a guided walkthrough on the actual app - not a manual. You're reviewing real material within minutes.

Questions, answered.

Cirello is a spaced-repetition app. It schedules review of anything you want to remember - words, facts, book highlights, ideas - so it resurfaces right before you'd normally forget it.

FSRS-6 is the scheduling model behind every review - the same class of model researchers use to model real memory, not a fixed interval table. Its parameters are retrained nightly rather than set once and left alone.

No. Paste a list to bulk-add cards with duplicate detection, or point a card at a real source - a book, a website, an image - instead of typing everything out by hand. You still organize your library into folders, capture is just faster.

It's offered right back to you on the spot, in the same session, instead of waiting for the next scheduled review - the deck repairs itself as you go.

A few minutes. FSRS-6 only resurfaces what's actually due that day - not your whole library at once.

Web today. iOS and Android apps are in progress.

No. The beta is completely free to use, no card required. Further down the road we plan to introduce a subscription to keep the project sustainable long-term - with benefits for early beta users who joined before that.

The app is fully translated into English and Ukrainian today, with more languages planned.

Read it once. Keep it.

No hidden markup, no fake urgency - the beta is open now.

Start using Cirello