Duoreader - Bilingual Books

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About this app

Duoreader — Read, Listen, and Learn Languages Smarter

Duoreader makes it easy to read bilingual texts by aligning translations sentence-by-sentence. Seamlessly switch between two languages as you improve your understanding — and experience the beauty of the original works side by side with their translations.

Now, Duoreader goes beyond classic reading:

🌟 What’s New

Read your own books — Import and enjoy custom ePUB and PDF files with full bilingual and TTS support.

Smarter dictionary — Instantly get richer definitions and examples, powered by ChatGPT.

Advanced Text-to-Speech (TTS) — Choose natural voices and reading speeds for immersive listening.

Live AI translation — Experience real-time, LLM-based translation as you read.

Better browsing — New book filtering, detailed book info pages, and infinite scrolling for smooth exploration.

Refreshed design — A cleaner, more intuitive layout for both study and leisure reading.

📚 Read and Learn

Duoreader supports many languages — Chinese, English, French, Spanish, Italian, Japanese, Arabic, Russian, and more to come.
Whether you're a beginner or a fluent reader, Duoreader helps you explore literature while strengthening your language skills.

🎧 Listen and Enjoy

With the built-in read-aloud feature, you can choose different accents and speeds (as supported by your device) — perfect for hands-free learning or immersive listening.

📖 Explore the Library

Discover bilingual editions of timeless classics:
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, The Little Prince, and more —
plus modern multilingual stories, including official publications from the United Nations.

Bring your favorite books, explore new worlds, and learn languages naturally — all within Duoreader.

Ratings and reviews

why there is no "Play/Stop" button? do I really need to get back to the beginning every time I want to stop for a second? is difficult to tap in the right place, in the right moment, most of the time you will get the translation of the word trapped. not comfortable

I found the selection of books very good - plenty of Russian classics. Reading and sound quality excellent. There are plenty of options on the menu to adjust voice, reading etc. However, the app lacks a possibility of bookmarks, which makes finding the place where you leave off reading difficult. There is also no possibility to search within the text.

can you make it possible for it to be usable in a portrait mode? also it'll be cool if I can just tap the sentence and the translation would show below it. I love the feature that shows the word translation. this app is almost the perfect app in my head.

What’s new

* Added support for reading customized books (ePUB and PDF) supported for now (3.0.1 fixed file picker in app);
* Improved dictionary (powered by ChatGPT)
* Added support for advanced TTS.
* Adds LLM based live translation
* Added book filtering, and book info page
* Infinite scrolling
* Updated UI layout, fixed several bugs