# ReadBoost: Vocab — Learn vocabulary while reading

> Learn vocabulary while reading (iPhone/iPad app by Huy Cong Tran.)

- Source: https://appshunter.io/ios/app/readboost-vocab/id6760661473 (this page in markdown: same URL + `.md`)
- Developer: [Huy Cong Tran](https://appshunter.io/developer/1775893369)
- Category: Education, Books
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 13.0 · 89 MB
- Languages: American English
- Released: 2026-04-04
- Data updated: 2026-07-31
- User reviews in markdown: https://appshunter.io/ios/app/readboost-vocab/id6760661473/reviews.md

## What is ReadBoost?

ReadBoost helps you become a better reader by learning vocabulary in 
context. Unlike traditional flashcard apps, ReadBoost lets you read 
books while getting real-time Word Wise hints for difficult words.

KEY FEATURES:
• Read books with interactive difficulty hints
• Word Wise-powered annotations for unfamiliar words
• Integrated dictionary with full definitions
• Learn 1000+ vocabulary words by reading naturally
• Track your learning progress
• Offline reading support
• Beautiful, distraction-free reading interface
• Export your learning data

PERFECT FOR:
• English learners improving reading comprehension
• Students preparing for standardized tests
• Professionals expanding their vocabulary
• Anyone who wants to read more effectively

HOW IT WORKS:
1. Import your favorite books (ePub format)
2. Read with Word Wise hints for challenging words
3. Learn words in the context of actual stories
4. Build vocabulary naturally through reading

PRICING:
• Free version: Access a limited catalog
• Pro version: Unlimited books + full catalog access

Start your reading journey today and expand your vocabulary the natural way!

This app uses public domain books from Project Gutenberg
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Monthly | $4.99 | per month |
| Yearly | $59.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime Access | $149.00 | one-time |



## Version history (last 2 releases)

### 1.0.10 — 2026-04-15

• 200+ books organized by CEFR level (A1→C1)
• Vocabulary Builder + Flashcard review mode for mastered words
• Improved Word Wise accuracy
• Smoother reading experience

### 1.0 — 2026-04-04

No release notes.

## More apps by Huy Cong Tran

- [Daily Quote Maker: MoodQuote](https://appshunter.io/ios/app/daily-quote-maker-moodquote/id6753922656)
- [Exif Editor: Clean Photo GPS](https://appshunter.io/ios/app/exif-editor-clean-photo-gps/id6794023940)

All apps by Huy Cong Tran: https://appshunter.io/developer/1775893369

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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 2026-07-31.*