# LingoBook vs ReadGem

The clearest difference is in-app purchases: ReadGem at none against LingoBook's 3. ReadGem also leads on update cadence (every 4 days vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. LingoBook sells 3 in-app purchases, starting at $1.00 per month. ReadGem asks for nothing beyond the download.

LingoBook ships an update every 4 months, ReadGem every 4 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | LingoBook | ReadGem |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/lingobook-read-any-language/id6746479282/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 4 days** |
| Monetization | Freemium | — |
| Size | 541 MB | 27 MB |
| Requires iOS | 18.6 | **17.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [BILINGO COMPANY LIMITED - LEARN ENGLISH 4 SKILLS](https://appshunter.io/developer/1774680301) | [NEXTAOI, Inc](https://appshunter.io/developer/1748938499) |

## What reviewers say

### LingoBook

[App page](https://appshunter.io/ios/app/lingobook-read-any-language/id6746479282)

This app is an ebook reader designed for language learners. It allows you to read books in various formats and instantly translate any word you tap. You can also explore bilingual content like YouTube videos and news articles to enhance your vocabulary and comprehension.

**Highlights:** Read ebooks in multiple formats, Built-in dictionary for 80+ languages, Instant word translation, Import your own books, Bilingual YouTube videos, Bilingual news articles, Smart dictionary for vocabulary building

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $1.00 | per month |
| Premium Yearly | $10.00 | per year |
| Premium Trial Yearly | $10.00 | per year |


### ReadGem

[App page](https://appshunter.io/ios/app/readgem-read-learn-languages/id6770457167)

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

**In-app purchases:** none


## Frequently asked questions

### Is LingoBook free?

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

### Is ReadGem free?

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

### Do LingoBook or ReadGem have ads?

Neither LingoBook nor ReadGem shows ads.

### Which is updated more often, LingoBook or ReadGem?

LingoBook ships an update every 4 months, and ReadGem every 4 days. Most recently, LingoBook was updated on October 24, 2026 and ReadGem on October 24, 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.*