16Word: Vocabulary Builder

16Word

In-app purchases

About this app

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

Download 16Word and start building your vocabulary today.

What’s new

Your words now come back to you.

• Double Check pages: every 3rd page reviews the words you actually got wrong.
• Pages are now 12 new words + 4 learned earlier, so older words resurface at
7, 30 and 90 days.
• Dashboard now shows performance by language pair, certificates and offline
downloads. Tap a pair to jump back in.
• Setup remembers where you left off.