Luma
SPACED REPETITION

Review the right words at the right time.

Luma's review loop begins with vocabulary you encountered in a puzzle. Crick watches which words are due and turns them into short sessions instead of asking you to maintain a separate flashcard deck.

  • Automatic scheduling
  • Active recall quiz
  • Visible mastery
01

What spaced repetition means in Luma

A word returns sooner when you miss it and waits longer when you recall it correctly. Luma doubles successful intervals and shortens missed ones, concentrating the session on vocabulary that needs more attention.

This schedule runs quietly behind the word bank. You do not have to choose dates, sort decks, or calculate the next review yourself.

02

Flashcards or active recall

Flashcards are useful when you want to browse definitions and examples. The SRS quiz asks you to retrieve the answer, which gives the scheduler stronger feedback about what you remember.

Crick surfaces due sessions on the home screen, but reviewing remains optional. You can always return to a puzzle instead.

03

Track knowledge, not exposure

The mastery meter groups reviewed vocabulary from CEFR A1 through C1. A word does not count as mastered merely because it appeared on a completed board.

Weekly summaries, review streaks, and the activity heat map make consistency visible without changing the core word-game progression.

FAQ

Common questions

Quick answers before you download.

What is spaced repetition?

Spaced repetition is a study technique where you review something at gradually increasing intervals, ideally just before you would forget it. Reviewing at the right moment takes less total time than cramming and produces memories that last much longer.

How does Luma decide when a word is due?

Each time you recall a word correctly, Luma doubles the wait before it appears again. When you miss it, the interval shrinks so the word returns sooner. You never have to schedule anything yourself.

Can I move my Luma words into Anki?

Yes, with Luma Plus, an optional Google Play subscription. It exports your word bank as a file you can bring into Anki, Quizlet, or a spreadsheet.

Find a word
today

Three minutes. One puzzle. Zero pressure.

Available now on Google Play. The App Store version is coming soon.