Lexicon Quest – RPG-style vocabulary learning supporting 7 languages

Summary: Lexicon Quest is a free vocabulary app that uses RPG mechanics and the SM-2 spaced repetition algorithm to help users learn words in seven languages. It works offline after download and includes daily quests and leaderboards to track progress.

What it does

Users battle monsters by solving word puzzles, leveraging the SM-2 algorithm for spaced repetition across English, Korean, Japanese, Spanish, Hindi, Vietnamese, and Chinese.

Who it's for

It is designed for students and language learners seeking to build vocabulary through gamified study.

Why it matters

It provides an engaging, offline-capable method to improve vocabulary retention using proven spaced repetition techniques.