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Flashcards come back when you are about to forget them, not when you happen to think of them. A card you find easy leaves you alone for weeks. One you keep missing returns in a day or two.

How review works

1

Open what is due

The Flashcards page tells you how many cards are due and which decks they are in. Open a deck to start.
2

Try to remember, then flip

Read the front, answer in your head, then flip the card with a click, Space or Enter.
3

Grade yourself honestly

Pick how well you knew it. Clamly schedules the next review from your answer.
Grading generously feels good today and costs you next week. Again is not a failure. It is how the scheduler learns which cards need more of your time.

Why FSRS

Clamly schedules cards with FSRS, the Free Spaced Repetition Scheduler that modern Anki uses by default. It estimates how strong each memory is from your review history, so intervals fit you rather than a fixed formula.
FSRS replaced the older SM-2 scheduler on 21 September 2026. SM-2 kept no review history that FSRS could learn from, so every card that existed then was reset to new and made due. If a large pile of due cards appeared that week, that is why. Your cards themselves were not changed.

Make a deck

Create a deck on the Flashcards page and add cards with a front and a back.

Your stats

The top of the Flashcards page shows four numbers:
  • Decks and Cards: how much you have.
  • Due: cards ready for review right now.
  • Mastered: cards you know well enough that they come back rarely. The retention figure next to the due banner is the share of your cards that are mastered.

Edit and delete

Rename or delete a deck from the deck menu. A deleted deck goes to the Trash for 30 days. Deleting a single card is immediate, with a few seconds to undo it from the message that appears. Single cards do not go to the Trash.
Last modified on September 29, 2026