16Word: Vocabulary Builder
Education
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Words, Expressions — real idioms in 28 languages, plus phrasal verbs and tongue twisters you read aloud. Still five minutes a day, still a Blocks break between answers.
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.
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Three new ways to practise — and a library that holds them all.
• Expressions. Real idioms, the ones textbooks skip: 64 in every language,
across five pages. You see what it means and answer with the expression
itself, by typing or by voice, with the idiom shown in a real sentence
when you want a hint.
• Phrasal verbs. 88 exercises per language: read the sentence, fill the gap,
pick the particle that a native would use.
• Tongue twisters. 32 lines per language to read aloud. The microphone scores
how close you got, and native recordings show you how it should sound.
• A library instead of a menu. The home screen now lists every track, with
Words in its own home, and "where you left off" takes you straight back to
the page and language pair you were on.
• Common Words: a 99-word starter category that opens the free trial in every
language pair.
• Blocks now fills the screen on phones, and the resume panel folds away.
• Difficulty says Easy, Medium or Hard instead of a level number.
• Hints are on by default, and a typo no longer costs you the word.
• A Tongue Master certificate when you finish a language's twisters, and a
line bomb for three clean reads in a row.
Free trial opens the first line, the first exercise and the first idiom in all
28 languages. Basic unlocks all 896 twisters, all 2,464 phrasal verbs and all
1,792 expressions.
The developer, NEXURA SARL-S, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Contact Info
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- NEXURA SARL-S
- Size
- 36.9 MB
- Category
- Education
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Basic $29.99
- Basic $2.99
- Copyright
- © 2026 NEXURA SARL-S
