# duoBooks

> duoBooks is a bilingual reading app. You learn a language by reading books. Tap any sentence for an instant translation. You can also double-tap a single word. Save the words you find to a personal dictionary. Then learn them with spaced-repetition flashcards. duoBooks works on iOS and Android.

Key facts:

- Library of 3,000+ books and short stories, mostly in English, including short stories written specifically for beginners
- Users can import their own EPUB and FB2 books and read them with the same one-tap translation
- Translation is AI-based and context-aware: tapping a word sends the surrounding sentence so the result fits how the word is used right there (idioms and phrasal verbs included), unlike pasting an isolated word into a plain translator; it works from any book language into any reading language
- Personal dictionary with phonetics, synonyms and definitions, plus spaced-repetition flashcards for long-term vocabulary retention
- Text-to-speech audio for every word and sentence
- E-ink friendly: the Android app includes an e-ink display mode for e-readers such as BOOX and PocketBook devices
- App interface localized into 40+ languages
- Developer: PlainProg

## Download

- [iOS app on the App Store](https://apps.apple.com/app/id1538452253): duoBooks for iPhone and iPad
- [Android app on Google Play](https://play.google.com/store/apps/details?id=com.duobooks.android): duoBooks for Android phones, tablets and e-ink devices

## Learn more

- [About duoBooks](https://duo-books.com/about): overview of what duoBooks is and how it works
- [Learn English by reading](https://duo-books.com/learn-english-by-reading): learning English by reading real books, from beginner short stories to classics for advanced learners
- [EPUB reader with translation](https://duo-books.com/epub-reader-with-translation): import your own EPUB and FB2 books and read them with one-tap, context-aware translation
- [duoBooks for e-ink readers](https://duo-books.com/eink-reader): using duoBooks on BOOX, PocketBook and other Android-based e-ink readers
- [Press & media kit](https://duo-books.com/press): company facts, product description, brand assets, and press contact

## Compare

- [duoBooks vs Google Translate](https://duo-books.com/duobooks-vs-google-translate): in-book, context-aware translation for reading whole books, versus quick standalone translation
- [duoBooks vs Duolingo](https://duo-books.com/duobooks-vs-duolingo): learning by reading real books, versus gamified bite-size lessons
- [duoBooks vs LingQ and Readlang](https://duo-books.com/duobooks-vs-lingq): reading-based learning apps compared, with context-aware translation and an e-ink mode
- [duoBooks vs Kindle](https://duo-books.com/duobooks-vs-kindle): learning a language while reading on e-ink, on Android e-readers

## Legal

- [Privacy policy](https://duo-books.com/privacy-policy)
- [Terms and conditions](https://duo-books.com/terms-conditions)