The Leitner System is turned off by default on new decks. To turn it on, find the switch that says "Leitner system" and, well, switch it on.

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The first thing you will notice when you turn the Leitner System on is that there will now be several tabs under the name of the deck: one for each box and one for all cards.

When Leitner is turned on for the first time, all your cards will be in Box 1, while Boxes 2 and 3 will be empty. Naturally, this will change as you study.

<aside> 🦊 The default number of boxes is 3, so this applies to all the examples in this guide. However, Muna PRO allows you to use up to 7 boxes.

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Things are still basically the same as before: you pick one of the boxes — let's say Box 1 — click the "Study Box" button, swipe through the cards, try to remember the answers, and check your score at the end.

The only difference is that when you finish studying, all the cards you correctly remembered will be moved to the subsequent box (unless, of course, they are already in the last box), while the cards you failed to remember will be put back in Box 1 (unless, again, they are already there).

The idea is that you study Box 1 every day (or as often as possible), Box 2 every three days or so, and Box 3 every week (or way less often than the other two boxes).

<aside> 👉🏽 When you are using Leitner Boxes the new cards you create or import are always added to Box 1 (they are new so you have to study them more frequently). That's why the big purple plus button is not available when you are browsing the other boxes.

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Here you see the 'Add Button' because you are browsing the cards in Box 1

Here you see the 'Add Button' because you are browsing the cards in Box 1

Here, the 'Add Button' is not available since you are browsing cards in Box 2. As new cards are added to Box 1 they wouldn't be visible here.

Here, the 'Add Button' is not available since you are browsing cards in Box 2. As new cards are added to Box 1 they wouldn't be visible here.

You can study multiple boxes simultaneously. In other words, you don't have to finish studying one box to start studying another.

You could, for instance, start studying Box 1, pause, and then start studying Box 2. If you finish studying Box 2, the cards you failed to remember will be put back into Box 1. This means that when you return to Box 1, you will have to study all the cards that were left when you stopped plus the ones that came from Box 2.