# WordLab: Vocabulary Builder — Science-Based Learning System

> Science-based vocabulary builder using active recall and spaced repetition. (iPhone/iPad app by Peter Barnett.)

- Source: https://appshunter.io/ios/app/wordlab-vocabulary-builder/id6740172587 (this page in markdown: same URL + `.md`)
- Developer: [Peter Barnett](https://appshunter.io/developer/1788720664)
- Category: Education, Games, Word
- Price: Free with in-app purchases
- Rating: 5.00/5 from 13 App Store ratings · 5 written reviews indexed
- Age rating: 12+
- Requires: iOS 17.4 · 153 MB
- Languages: American English
- Released: 2025-02-06
- Data updated: 2026-10-30
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/wordlab-vocabulary-builder/id6740172587/reviews.md

## What is WordLab?

WordLab is the first app to systematically ensure your words leap to mind in the right contexts when you think, speak, and write.
It offers true vocabulary expansion: words that once felt foreign truly become second nature. This is beyond rote memorization.

To achieve this, WordLab combines 6 essential technical ingredients no app has combined before:
1. Active Recall. Without this you may learn to recognize a word when you read it, but you can't necessarily conjure it in mind even if you see the definition. You don't own it.
2. Spaced Repetition. This automates reviews, making it possible to learn and maintain memory of more and more words without increasing daily time spent.
3. Recall-Speed-Aware Scheduler. By informing the smart scheduler of every recall's speed, fast recall is unlocked sooner and failed recalls & wasted time are reduced.
4. Variable-Context cues. Only when the learned cues for recall mirror the real world do your words leap to mind reliably in real contexts while you think, speak, and write.
5. Contrastive Learning. Without this, clusters of words blend together in your mind so you can't tell them apart (e.g. amiable vs genial, dale vs glen vs dell, prudent vs judicious). Subtle flavors are pointless without a refined palate to appreciate them.
6. Words ordered by rarity. By learning words in order of rarity, you maximize utility gained per unit time spent in terms of recognizing words you'll actually see and that people will understand when you use. It is also natural that the more common a word is, the more useful it is likely to be, as a trend.

Beyond these 6 essentials, WordLab includes extra ingredients that further optimize learning and encourage flow-state and habit-formation:
1. Each word has an image encoding its meaning. These evocative images get exposed upon each recall to be reinforced, leveraging the superiority of visual-spatial memory and acting as so-called "neural hooks" to improve retention and understanding in accordance with dual-coding theory.
2. With over 15,000 procured words, the app offers a comprehensive set of words so you have lots of room to grow.
3. Astral Trophy Room. Watch your vocabulary grow! Every learned word becomes a star in your explorable sky. Practiced contrasts form constellations.
4. Streaks encourage daily use
5. Achievements and Leaderboards encourage aspirations
6. Unlocking animal profile pictures described by your words allows you to personalize your profile further as you progress.
7. Save Word Collections to keep track of your favorite kinds of words
8. Play multiplayer with friends
9. Make separate profiles connected to your iCloud account so the whole family can play on all your devices.
10. Crosswords package up repetitions into palatable gamified bite-sized pieces
11. No ads! Don't get bothered by annoying ads!

MAKE IT YOURS
Explore a bank of about 20,000 English words. Save word collections, play multiplayer with friends, and use separate profiles on iPhone and iPad through your iCloud account. Choose reminders that fit your routine.

Made for readers, writers, advanced English learners, and anyone who wants their word-game time to build a richer vocabulary using a cutting edge methodology.

Privacy Policy: https://lexivocab.app/privacy/
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Active Recall
- Spaced Repetition
- Variable-Context Cues
- Contrastive Learning
- Visual Encoding
- Multiplayer Games
- Progress Tracking

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| WordLab Premium (Monthly) | $6.69 | per month |
| WordLab Premium (Quarterly) | $15.99 | per 3 months |
| WordLab Premium (Annual) | $47.99 | per year |


## Is WordLab safe?

Not enough ratings yet to assess WordLab.

## Is WordLab legit?

WordLab: Vocabulary Builder appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for WordLab is 65 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (5 of 5)

All indexed reviews: https://appshunter.io/ios/app/wordlab-vocabulary-builder/id6740172587/reviews.md

### 5/5 — Great game

*2026-10-21*

Very helpful for learning and fun

### 5/5 — Fun, easy to use, and great for learning!

*2026-07-09*

I’ve been looking for an app to help me grow my active vocabulary and this seems perfect! I already have a broad vocabulary when it comes to understanding what I read, but when I write my brain struggles to come up with the same words in the moment I want to use them. Being able to use words in context while solving puzzles is exactly the kind of game-ified applied practice I was hoping to find! I also love how easy it is to switch between difficulties, which is something the previous vocabulary app I was using lacked. With this one, I started on normal mode but switched to hard mode after a few games, which feels like the perfect level for pushing the edge of my comfort zone. I haven’t tried multiplayer yet, but the solo mode is excellent! I definitely recommend checking this one out! 😁

The only small issue/suggestion I have as of now is that when I tap on a word to bring up its details panel, such as on the word of the day, I don’t see the button to save it to my favorite words. My phone is on the older side and has a shorter screen than most new ones, so it could be that the button exists and just isn’t visible on my device; I’ve had that kind of interface compatibility issue before. Still, if there’s a way to make it adapt to a shorter phone screen that would be great.

**Developer response:** Thanks so much for this very nice review! I noticed you going ham on the leaderboard haha so I released the next update early for you before even preparing the app store image and videos for it. I hope you like it! You're totally right about the button for favoriting words in the details panel. I've already made the change on my local version, which will be included in the next update shortly (you'll also be able to add the word to any collections there). If you have any more suggestions for the app, you can go to Settings -> Suggest a Feature (or -> Report a Bug). Additionally, I will enable the ability to provide feedback on the contrastive images and nuance information shortly. Thanks for playing!

### 5/5 — Builds Vocabulary and Fun

*2025-04-15*

Gets better and better with each update. Not your average crossword puzzle, but rather a puzzle that builds vocabulary with intermittent repetition of missed words. It’s different, and I really like it.

### 5/5 — cool app

*2025-03-31*

made me like crosswords

### 5/5 — Crossword aficionados

*2025-02-11*

Challenging!

## Frequently asked questions about WordLab

### What is the learning methodology used by WordLab?

WordLab employs a science-based system combining active recall, spaced repetition, recall-speed-aware scheduling, variable-context cues, contrastive learning, and words ordered by rarity. This approach aims for true vocabulary expansion beyond rote memorization.

### How does WordLab track user progress?

Progress is visualized through an 'Astral Trophy Room' where each learned word becomes a star in an explorable sky. Practiced contrasts form constellations, and streaks encourage daily use, alongside achievements and leaderboards.

### Does WordLab offer any certifications?

The provided data does not mention any specific certifications offered by WordLab. Its focus is on vocabulary acquisition and retention through its unique learning system.

### What are the subscription options for WordLab Premium?

WordLab Premium offers monthly ($6.69/P1M), quarterly ($15.99/P3M), and annual ($47.99/P1Y) subscription plans for enhanced features and access.

### Can I use WordLab on multiple devices?

Yes, you can make separate profiles connected to your iCloud account, allowing the whole family to play on all your devices, including iPhone and iPad.

### Does WordLab have ads?

No, WordLab explicitly states 'No ads! Don't get bothered by annoying ads!' in its description, indicating it is an ad-free experience.

### What is the age rating for WordLab?

WordLab has an age rating of 12+, making it suitable for users aged 12 and above.

### How often is WordLab updated?

The latest version is 1.166, and the app was last updated on October 29, 2026. This suggests a relatively frequent update cycle for improvements and new content.

## Version history (last 5 releases)

### 1.166 — 2026-10-29

Rebranded to WordLab; Smarter Scheduler; Improved Word Card Aesthetics; Bug Fixes; Speech-to-Text

### 1.165 — 2026-10-18

Speech to Text for easy input!
Improved iPad aesthetics!
Bug Fixes!

### 1.164 — 2026-10-08

• Word cards and clues now balance text across lines.
• Completed crossword entries show the answer in its sentence clue.
• Post-game nuance rounds now stop at three activities.
• Review reminders look ahead to upcoming reviews and respect your chosen time.
• Clearer, more varied reminders make it easier to return for a small session.

### 1.163 — 2026-08-30

Bug Fixes

### 1.162 — 2026-08-26

Sky Map! Friends! Profiles! Unlockable Avatars!
Nuance Assignment Drills! Improved Aesthetics!
Smoother onboarding experience! Refer a friend!

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*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 2026-10-30.*