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.
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.
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.
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.
Three minutes. One puzzle. Zero pressure.
Available now on Google Play. The App Store version is coming soon.