# 16Word: Vocabulary Builder

> 16Word: Vocabulary Builder (iPhone/iPad app by NEXURA SARL-S.)

- Source: https://appshunter.io/ios/app/16word-vocabulary-builder/id6784639151 (this page in markdown: same URL + `.md`)
- Developer: [NEXURA SARL-S](https://appshunter.io/developer/6784639153)
- Category: Education
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 21 MB
- Languages: American English
- Released: 2026-07-09
- Data updated: 2026-08-29
- User reviews in markdown: https://appshunter.io/ios/app/16word-vocabulary-builder/id6784639151/reviews.md

## What is 16Word?

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.

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Basic | $2.99 | per month |
| Basic | $29.99 | per year |



## Version history (last 4 releases)

### iOS 1.3 (18) — 2026-08-22

Your words now come back to you.

• Double Check pages. Every third page is a review round built from the words
  you actually got wrong or had to reveal — not a random reshuffle.

• A new page is 12 new words plus 4 you learned earlier, so older vocabulary
  keeps resurfacing at the 7-, 30- and 90-day marks instead of being left
  behind once a page turns green. Review words never appear in the warm-up:
  seeing a word a minute before being asked measures reading, not recall.

• Your dashboard now shows Performance by Language Pair, your certificate
  progress, and your offline downloads without digging through menus. Tap any
  language pair to jump straight back into practising it.

• Setup remembers where you left off, so you can carry on with a topic in one
  tap.

• Clearer plan comparison, with every feature spelled out.

Fixes: personal Tetris records now follow your account across devices instead
of being stuck on one phone. Nine languages — including Luxembourgish, Dutch,
Icelandic, Arabic, Hebrew, Hindi, Ukrainian, Latin and Azerbaijani — were
limited to the first page of every topic; all pages are now available. Also
fixed a crash when signing out from certain screens.

### Version 1.2 — 2026-08-21

1. New languages
2. Certification option
3. New sign-up lifecycle
4. Placement exam
5. Updated screenshots
Two new languages — Dutch and Icelandic — bring 16Word to 20 languages, each learnable from any of the others. Earn verifiable CEFR vocabulary certificates (A1–C2), sealed by real recall over time. Find your starting level with the new placement test. Redesigned plans page, clearer free options, plus bug fixes and performance improvements.

### 1.1 — 2026-08-12

• Your progress now speaks the official language: CEFR vocabulary levels (A1–C2), earned word by word
• Reach a new level and claim an official, shareable certificate — with scannable QR verification
• Smart review: words return for 7/30/90-day recall checks, so they stick for good
• Italian and Japanese fully added — 18 languages total
• Built-in on-screen keyboards for Russian, Arabic, Persian, Hebrew, Hindi, Japanese and more
• Japanese answers now accept hiragana readings
• Per-language placement levels and many fixes

### 1.0 — 2026-07-09

No release notes.

## Apps similar to 16Word

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Radiant: Speaking Challenges](https://appshunter.io/ios/app/radiant-speaking-challenges/id6751936053) | 4.8 (914) | Free | Education |
| [Pocoyo House: Videos and Games](https://appshunter.io/ios/app/pocoyo-house-videos-and-games/id1310313659) | 4.2 (140) | Free | Education |
| [Wellspoken: Articulation Coach](https://appshunter.io/ios/app/wellspoken-articulation-coach/id6752822613) | 4.8 (4,533) | Free | Education |
| [Pluralsight](https://appshunter.io/ios/app/pluralsight/id6737839588) | 1.4 (48) | Free | Education |
| [Kidizz](https://appshunter.io/ios/app/kidizz/id727118807) | 4.1 (55) | Free | Education |
| [Painting App Doodle Paint Draw](https://appshunter.io/ios/app/painting-app-doodle-paint-draw/id992802928) | 4.8 (359) | Free | Education |

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-29.*