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Use case · Spaced repetition

A Free Spaced Repetition App That Actually Schedules Your Reviews

Brainfy uses spaced repetition to show each flashcard at the moment you’re about to forget it — so cards you know fade into the background and the ones you miss come back sooner. Build decks by hand, import them, or let the AI draft them from your notes.

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What spaced repetition does for you

Cramming fights forgetting with brute force. Spaced repetition works with your memory instead: each correct review pushes the next one further out (a day, then a week, then a month), while a miss resets the card to short intervals. The result is durable recall for a fraction of the review time.

How Brainfy schedules cards

1

Rate each card honestly

After flipping a card you tap Again, Hard, Good, or Easy — the same four-button scale serious learners rely on.

2

Brainfy sets the next date

An SM-2-style algorithm grows the interval for cards you know and collapses it for cards you miss, with a daily cap so new decks never bury you.

3

Review only what’s due

Your home screen surfaces exactly the cards due today — no more, no less — so a session stays short and finishable.

More than a scheduler

Frequently asked questions

Is Brainfy’s spaced repetition free?

Yes. The spaced-repetition engine — scheduling, the four-button rating, and daily review queue — is free during beta with no deck limits.

What algorithm does Brainfy use?

An SM-2-style algorithm (the family Anki popularised): correct reviews grow the interval via an ease factor, misses reset it, and new cards are capped per day so you don’t burn out.

Can I import existing decks?

Yes — paste or upload CSV, tab-separated, Anki plain-text, or Quizlet exports from any deck’s Cards tab, and they slot straight into the schedule.

Do I need to build cards manually?

No. You can write cards by hand, import them, or let the AI generate a deck from your notes, a PDF, or a photo — all three feed the same SRS.

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Brainfy is built by Aihan Mifthas · Last updated 2026-05-31. Open Brainfy →