Flash drill

A flash-style memory drill: a word or sentence is shown for a brief moment, hidden, recalled, then checked. Depending on whether you knew it, the card comes back after 1, 2, 4, 7 or 15 days.

How to use

1. Under "Deck", pick a built-in deck (words by topic, sentences of the day) or one of your own.
2. Set "Show for" and press "Start the drill". The card appears briefly and is then hidden.
3. While it is hidden, recall the answer, then tap the card or press "Show answer". Press "Flash again" if you missed it.
4. After seeing the answer, press "Knew it" or "Missed it". Missed cards come back soon in the same session.
5. In the "My decks" tab, paste a word list to create a deck, or manage decks sent from "Words of the day".

How it works

• "Knew it" moves a card up one level and brings it back after 1, 2, 4, 7 and 15 days. "Missed it" sends it back to level 1 for tomorrow.
• Built-in decks follow the chosen learning and known languages; your own decks keep the languages they were made with.
• The paste format is one card per line, with word and meaning separated by a tab, a comma or " - ".
• Progress and your decks are saved only in this browser on this device.

Questions and answers

How is this different from ordinary flashcards?

The card does not stay on screen: it is shown for a set time and disappears. The brief look followed by recall is what strengthens the memory.

What show time should I use?

Start around 1.5 seconds and shorten it to about 0.6 seconds as the deck becomes familiar. Longer sentences are easier at 2 seconds or more.

It says no cards are due today.

No card has reached its review date. Choose "All, shuffled" or "New only" to study right away.

Can I import a word list from a spreadsheet?

Copy the two columns (word and meaning), paste them into the box in the "My decks" tab and press "Create deck".