# Polyglot Reader vs Duoreader

The clearest difference is in-app purchases: Duoreader at none against Polyglot Reader's 11. Duoreader also leads on ads (none vs shown). Polyglot Reader's advantage is rating (4.4 vs 4.1) and ratings volume (74 vs 15). On price, review sentiment, update cadence 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. Duoreader asks for nothing beyond the download.

Polyglot Reader holds the better App Store score, 4.4 against 4.1. Both are backed by a comparable volume of ratings — 74 and 15 respectively. Written reviews point the same way: 66% of Polyglot Reader's written reviews are positive against 63% of Duoreader's.

Polyglot Reader ships an update every 2 months, Duoreader every 3 months. The most recent releases landed on September 28, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Polyglot Reader | Duoreader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (74 ratings)](https://appshunter.io/ios/app/polyglot-reader/id1015619263/reviews)** | [4.1 (15 ratings)](https://appshunter.io/ios/app/duoreader-bilingual-reading/id1527845152/reviews) |
| Number of ratings | **74** | 15 |
| Positive reviews | **65.7% of reviews** | 62.5% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 120 MB | 55 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Anton Ivanov](https://appshunter.io/developer/594091388) | [Xing Chen](https://appshunter.io/developer/990526001) |

## 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 |


### Duoreader

[App page](https://appshunter.io/ios/app/duoreader-bilingual-reading/id1527845152)

Read books and articles in two languages simultaneously, with sentence-by-sentence translations and audio support. Improve language skills naturally while enjoying literature and news. Supports custom imports and AI-powered explanations.

**Highlights:** Sentence-by-sentence bilingual translation, AI-powered dictionary, Advanced text-to-speech with multiple voices, Import custom ePUB and PDF files, Wide range of classic and modern texts, Supports multiple languages

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

**In-app purchases:** none


## Frequently asked questions

### Is Polyglot Reader free?

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

### Is Duoreader free?

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

### Which has better reviews, Polyglot Reader or Duoreader?

Polyglot Reader is rated higher. Polyglot Reader averages 4.4 out of 5 from 74 ratings, while Duoreader averages 4.1 from 15 ratings.

### Do Polyglot Reader or Duoreader have ads?

Polyglot Reader shows ads; Duoreader does not.

### Which is updated more often, Polyglot Reader or Duoreader?

Polyglot Reader ships an update every 2 months, and Duoreader every 3 months. Most recently, Polyglot Reader was updated on September 28, 2026 and Duoreader on September 26, 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.*