# Polyglot Reader vs Book Translator

The clearest difference is rating: Book Translator at 4.9 against Polyglot Reader's 4.4. Book Translator also leads on ads (none vs shown) and review sentiment (86% vs 66%). Polyglot Reader's advantage is ratings volume (74 vs 12). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Polyglot Reader sells 11 in-app purchases, starting at $3.99 per month and Book Translator sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Book Translator holds the better App Store score, 4.9 against 4.4. That said, the two scores are not equally well evidenced: Polyglot Reader has 74 ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 66% of Polyglot Reader's written reviews are positive against 86% of Book Translator's.

Polyglot Reader ships an update every 5 weeks, Book Translator every 10 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Polyglot Reader | Book Translator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (74 ratings)](https://appshunter.io/ios/app/polyglot-reader/id1015619263/reviews) | **[4.9 (12 ratings)](https://appshunter.io/ios/app/book-translator-epub-and-pdf/id6757822325/reviews)** |
| Number of ratings | **74** | 12 |
| Positive reviews | 65.7% of reviews | **85.7% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Every 10 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 137 MB | 103 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Anton Ivanov](https://appshunter.io/developer/594091388) | [Mykyta Romanenko](https://appshunter.io/developer/1869128494) |

## What reviewers say

### Polyglot Reader

[App page](https://appshunter.io/ios/app/polyglot-reader/id1015619263)

Read books in foreign languages and learn new vocabulary. Tap on unknown words for instant translations and save them to flashcards for later study. Supports various document formats and offers pronunciation practice and knowledge tests.

**Highlights:** Read books in multiple formats (PDF, EPUB, TXT), Translate unknown words and phrases instantly, Create flashcards for vocabulary learning, Pronunciation support for words and phrases, Knowledge tests for vocabulary sets, Scan and recognize text from documents

**Features:** macOS Compatibility

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $3.99 | per month |
| Monthly subscription | $7.99 | per month |
| Monthly subscription | $7.99 | per month |
| Monthly subscription | $9.99 | per month |
| Annual subscription | $22.99 | per year |
| Annual subscription | $34.99 | per year |
| Annual subscription | $39.99 | per year |
| Annual subscription | $59.99 | per year |
| Upgrade from advanced to professional version | $3.99 | one-time |
| Upgrade from Starter to Advanced version | $15.99 | one-time |
| Full version | $99.99 | one-time |


### Book Translator

[App page](https://appshunter.io/ios/app/book-translator-epub-and-pdf/id6757822325)

Read and translate books in EPUB, PDF, FB2, and TXT formats with integrated AI-powered translation. Turn any book into a bilingual experience by tapping words or phrases for instant translations without leaving the page. Supports offline translation and offers a distraction-free reading interface.

**Highlights:** Import EPUB, PDF, FB2, TXT files, Tap for instant word translation, Translate sentences and paragraphs, AI-powered and offline translation, Bilingual reading experience, Distraction-free interface, Smart book library

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $2.99 | per month |
| Premium Yearly | $24.99 | per year |


## Frequently asked questions

### Is Polyglot Reader free?

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

### Is Book Translator free?

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

### Which has better reviews, Polyglot Reader or Book Translator?

Book Translator is rated higher. Polyglot Reader averages 4.4 out of 5 from 74 ratings, while Book Translator averages 4.9 from 12 ratings.

### Do Polyglot Reader or Book Translator have ads?

Polyglot Reader shows ads; Book Translator does not.

### Which is updated more often, Polyglot Reader or Book Translator?

Polyglot Reader ships an update every 5 weeks, and Book Translator every 10 days. Most recently, Polyglot Reader was updated on October 24, 2026 and Book Translator on October 25, 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.*