# OneBook vs woRds2

The clearest difference is in-app purchases: woRds2 at none against OneBook's 2. woRds2 also leads on iOS requirement (13.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. OneBook sells 2 in-app purchases, starting at $8.00 per month. woRds2 asks for nothing beyond the download.

OneBook ships an update weekly, woRds2 every 5 days. The most recent releases landed on November 8, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | OneBook | woRds2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (64 ratings)](https://appshunter.io/ios/app/onebook-language-learning/id6749743594/reviews)** | — |
| Number of ratings | **64** | — |
| Positive reviews | 97.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Every 5 days** |
| Monetization | Freemium | — |
| Size | 229 MB | 18 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [翊 林](https://appshunter.io/developer/1803147015) | [Chiang Kao](https://appshunter.io/developer/1891671646) |

## What reviewers say

### OneBook

[App page](https://appshunter.io/ios/app/onebook-language-learning/id6749743594)

This app offers a comprehensive language learning experience by integrating audiobooks, podcasts, and videos. It features AI-powered tools for instant text explanations, word lookup, and subtitle generation, supporting over 60 languages.

**Highlights:** AI Instant Tutor for text explanations, Automatic subtitle generation for audiobooks, Real-person narration for eBooks, Interactive PDF audio books, Efficient word and sentence lookup, Vocabulary level highlighting, Multiple reading modes

**Features:** macOS Compatibility, Vision Pro support, iPhone Duo support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OneBook Premium Monthly | $8.00 | per month |
| AI Pack 1000 | $5.00 | one-time |


### woRds2

[App page](https://appshunter.io/ios/app/words2/id6761825668)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is OneBook free?

OneBook is free to download, with in-app purchases available.

### Is woRds2 free?

woRds2 is free to download, with no in-app purchases.

### Do OneBook or woRds2 have ads?

Neither OneBook nor woRds2 shows ads.

### Which is updated more often, OneBook or woRds2?

OneBook ships an update weekly, and woRds2 every 5 days. Most recently, OneBook was updated on November 8, 2026 and woRds2 on November 6, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*