# Duoreader - Bilingual Reading — Classics and News with Audio

> Bilingual reading app with aligned translations, audio, and AI dictionary. (iPhone/iPad app by Xing Chen.)

- Source: https://appshunter.io/ios/app/duoreader-bilingual-reading/id1527845152 (this page in markdown: same URL + `.md`)
- Developer: [Xing Chen](https://appshunter.io/developer/990526001)
- Category: Education
- Price: Free
- Rating: 4.10/5 from 15 App Store ratings · 8 written reviews indexed
- Age rating: 12+
- Requires: iOS 15.0 · 55 MB
- Languages: American English, Chinese (Simplified, China), Chinese (Traditional, Taiwan)
- Released: 2020-08-16
- Data updated: 2026-08-29
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/duoreader-bilingual-reading/id1527845152/reviews.md

## What is Duoreader?

Duoreader makes it easy to read bilingual texts by aligning translations sentence by sentence. You can enjoy the beauty of the originals while improving your language skills naturally. Whether you are studying a language, reading literature, or listening to books, Duoreader provides a smooth and intelligent reading experience.

What's new:
* Support for custom books: import and read your own ePUB and PDF files
* Smarter dictionary powered by ChatGPT for richer and more natural explanations
* Advanced text-to-speech (TTS) with multiple voices and adjustable speed
* AI live translation powered by large language models for real-time bilingual reading
* Improved library with book filtering, book info pages, and infinite scrolling
* Updated user interface with a cleaner and more immersive design

Duoreader supports many languages including Chinese, English, French, Spanish, Italian, Japanese, Arabic, and Russian, with more to come. The read-aloud feature lets you choose different accents, voices, and speeds, making language learning and listening effortless. The library includes a wide range of public-domain classics such as Pride and Prejudice, A Tale of Two Cities, Twenty Thousand Leagues Under the Sea, Alice in Wonderland, Around the World in Eighty Days, 1984, Animal Farm, Gulliver’s Travels, Oliver Twist, and The Little Prince, along with multilingual modern articles and official United Nations stories. Bring your own books and explore the world of language and literature with Duoreader.

## Key features

- 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

## Recent user reviews (8 of 8)

All indexed reviews: https://appshunter.io/ios/app/duoreader-bilingual-reading/id1527845152/reviews.md

### 5/5 — Amazing for learning Spanish

*2026-06-26*

This is exactly what I have been looking for in having English and Spanish side by side.  The reader is really helpful to hear how the Spanish words are pronounced.  Ipad version is much easier to navigate than android phone version.  Love books are already built in.  I can’t believe this is free, I would happily pay for this app to make language learning way more real and useful than many other apps on the market. Thank you for creating and sharing! Would love OpenDyslexic font option as well.

### 4/5 — Useful and simple

*2026-04-19*

I’m enjoying using the app. The recent dictionary update has been improved with context specific definitions. This is likely book specific but for my use cases it’s much better. The UI is simplistic but works. The added narration voices are much better as well but not totally natural.

### 1/5 — 下载了。打不开书，无法阅读

*2025-10-31*

下载了。打不开书，无法阅读

**Developer response:** 抱歉，服务器当时出了点问题，已修复

### 3/5 — Good, could be better

*2024-04-22*

The dictionary is very poor, but otherwise the concept is excellent

**Developer response:** We updated the dictionary to use LLM to provide dictionary with context. Hope you'll lke it.

### 1/5 — Nothing happens.

*2023-08-15*

I tried to find your support page. I couldn’t and that’s why I’m doing this in reviews.

Is there something other than the app that I need to install before it starts working? I can’t select any books or articles. I appreciate your help with this.

**Developer response:** Sorry, for certain language pairs, book selection was limited. In recent 2.0 publish, LLM translation is introduced and if you can give it a try, it should be a lots better.

### 4/5 — Details

*2022-12-16*

This app is great and I love that it is free! However, I wish the voice that reads aloud was a bit smoother and overall just better sounding. Additionally, The taskbar could be a bit better. If the app would allow you to keep your phone facing one way, rather than having to rotate your phone that would be helpful. Lastly, It would be great if you could search for specific book titles.

### 5/5 — 美中不足

*2022-04-17*

夜间模式时纯黑背景上的白字其实非常刺眼。希望更换柔和的背景和字体颜色。或者至少能够方便的关掉夜间模式。

### 5/5 — A hidden Gem

*2021-10-26*

😩🙏🏿🙏🏿
Have been looking for this kind of quality for a while, I think the name hides it

## Frequently asked questions about Duoreader

### What languages does Duoreader support?

Duoreader supports a wide array of languages including Chinese, English, French, Spanish, Italian, Japanese, Arabic, and Russian, with plans to add more in the future.

### Can I read my own books with Duoreader?

Yes, Duoreader allows you to import your own ePUB and PDF files, enabling you to read your personal collection in a bilingual format.

### How does Duoreader help with language learning?

It facilitates natural language improvement by providing side-by-side translations and an AI-powered dictionary for richer explanations, alongside read-aloud features.

### What kind of content is available in Duoreader?

The library includes public-domain classics like 'Pride and Prejudice' and '1984', modern articles, and United Nations stories, all available in multiple languages.

### Does Duoreader have ads?

No, Duoreader is ad-free, ensuring an uninterrupted and immersive reading experience for all users.

### What is the age rating for Duoreader?

Duoreader is rated for users aged 12 and above, making it suitable for young adults and older learners.

### How often is Duoreader updated?

The app was last updated on February 5, 2026, indicating ongoing development and feature enhancements.

### What devices can I use Duoreader on?

Duoreader is available on iPhones, iPads, and iPods, offering a versatile experience across Apple devices.

## Version history (last 5 releases)

### 4.6 — 2026-07-07

• New Supertonic narration voices for English and other non-Chinese books — richer, more natural sound
• Smarter voice selection on iOS when switching between Chinese and other languages
• Improved Japanese text-to-speech language handling

### 4.3 — 2026-06-18

What's new in 4.0.5

• Shelf layout improved on iPad and wide screens; clearer covers for imported books
• More reliable auto-read and tap-to-play, including premium voices
• Stop or double-tap a playing sentence without losing your place
• Dictionary lookups keep the current sentence highlighted while audio continues
• Loading indicator while voice audio is preparing
• In-reader help guide; retry when loading fails
• Bookmark sync, continue reading, and shelf polish

### 4.0 — 2026-06-04

- Bookmarks and reading progress are improved and more reliable (supports signed-in sync across devices)
- New/updated Bookmarks page with “Continue reading” and better organization/search
- UI refresh across the reader and library (layout + styling polish)

### 3.0.3 — 2026-02-05

1. status bar update
2. remember the last read position

### 3.0 — 2025-10-09

* Default to advanced TTS (to address the low quality TTS issue for iPhones).
* Added support for reading customized books (ePUB and PDF) supported for now;
* Improved dictionary (powered by ChatGPT)
* Adds LLM based live translation
* Added book filtering, and book info page
* Infinite scrolling
* Updated UI layout, fixed several bugs

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## More apps by Xing Chen

- [乡音 - 方言交流分享](https://appshunter.io/ios/app/id990526002)
- [读典籍 - 文白对照读懂典籍](https://appshunter.io/ios/app/id994426547)
- [Where is the Sun](https://appshunter.io/ios/app/where-is-the-sun/id1021858372)
- [Playground Shade Finder](https://appshunter.io/ios/app/playground-shade-finder/id6751465916)
- [BotaniSense: AI Plant Care](https://appshunter.io/ios/app/botanisense-ai-plant-care/id6758401071)

All apps by Xing Chen: https://appshunter.io/developer/990526001

## Related topics

[duoreader](https://appshunter.io/ios/topics/duoreader)

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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 2026-08-29.*