16Word: Vocabulary Builder

Build a vocabulary that sticks — 16 new words a day in about 5 minutes, with spaced repetition and a Tetris break between answers so the words actually stay.

Learn a new language 16 words at a time.

16Word helps you build a vocabulary that actually sticks — in about 5 minutes a day. Learn 16 new words, lock them in with active recall and spaced repetition, and take a quick Tetris break between answers so your brain stays fresh and the words stay put.

WHY 16 WORDS? 16 words a day is roughly 5,800 a year — about the size of a working vocabulary in a new language. Small daily reps, big yearly results.

HOW IT WORKS • Learn 16 words per level with flashcards — type or speak your answer. • Clean correct answers earn Tetris pieces; a quick game every few words keeps you sharp. • Spaced repetition resurfaces words right before you'd forget them. • Short timed tests prove what you've really remembered.

FEATURES • Many languages to learn from, with native pronunciation audio. • Speak your answers with voice input. • Synonyms accepted — answer in your own words. • Streaks, achievements, and a leaderboard to keep you motivated. • Works offline (paid plans) so you can learn anywhere. • Syncs across your devices.

PLANS Start free. Upgrade to Basic or Premium for unlimited daily words, offline mode, and more. Subscriptions are billed through your Apple account; manage or cancel anytime in Settings. 16Word Basic is an auto-renewable subscription, offered monthly or annually. The exact price for your region is shown in the app before you purchase. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period; your account is charged for renewal within 24 hours before the period ends. Manage or cancel anytime in your device's Account Settings. Privacy Policy: https://www.16word.com/privacy

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Download 16Word and start building your vocabulary today.