Memory sticks when you keep showing up.

A free flashcard trainer that rewards steady study with XP, streaks and badges, backed by plain-English guides to how memorization works.

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  • Your decks and progress stay in this browser

What happens to a card in the Leitner system when you get it wrong?

It goes back to box 1, so it comes up again soon.

Tap the card to flip it. Then swipe right if you knew it, left if not. You can also use the Space bar and the arrow keys.

Five topics, one goal: remember what you study

Each topic has nine guides. Start with how memory works, or jump to the technique you need today.

How Memory Works

Encoding, storage and retrieval, and why forgetting is normal.

9 guides

Six guides to start with

If you only read a few pages, read these. They cover the ideas the rest of the site builds on.

Browse all 45 guides

How Practice works

Practice rewards the habit of coming back, not luck. There are no prizes, no rankings and no sign-up.

  1. Flip and answer. Read the front, think of the answer, flip the card, and tell the truth about whether you knew it.
  2. Cards return when they are due. Right answers move a card to a box with a longer wait. A miss sends it back to box 1.
  3. Earn rewards for showing up. Every card you review earns XP. Keep a streak with one rest day a week, collect badges and unlock card covers.

Open Practice

The five boxes and their waits

  1. Box 11 day
  2. Box 22 days
  3. Box 34 days
  4. Box 48 days
  5. Box 516 days

A simple model. How fast you forget varies from person to person, so treat the waits as a guide.

How we write

  • We open and read every source before we cite it. If we could not check it, we leave it out.
  • Articles are signed by the swipewisee.com Editorial Team. We do not invent experts, degrees, testimonials or statistics.
  • Each article shows when it was published and when it was last reviewed.
  • When we get something wrong, we fix it in public on the Corrections page.