16Word helps you build permanent vocabulary in just 5 minutes a day — 16 words at a time, with spaced repetition and Tetris brain-breaks that make words stick for good.
Vocabulary that sticks and native audio and games. Many languages, learnable from any other — including Latin, Hebrew and Luxembourgish. CEFR A1–C2 sealed by 90-day recall, with a verifiable certificate.
