Smart Book: Bilingual Reader

Contains adsIn-app purchases
30.3K reviews
Content rating
Everyone
10L+
Downloads
Content rating
Everyone
Digital purchases
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About this app

Read English books, English novels with translation and books in a foreign language with parallel text — a bilingual reader and multilingual ebook reader built for bilingual reading and reading foreign texts. Original and translation sit side by side, so you always read with translation in view. Long-tap any word or page to translate it with Google, DeepL, Reverso, ChatGPT, Claude and Gemini.

No dictionary app, no copy-paste — the translation appears inside the book. Import your own EPUB, FB2, TXT or .srt, or open the bilingual library.

Features:
• Bilingual books, bilingual book, bilingual ebook, bilingual book app, parallel text, parallel texts, parallel books, translated books
• Parallel translation of books, books with parallel translation, book translation, book translator app, parallel text books, parallel translation reader, parallel reading books, side by side reading
• Bilingual reader, bilingual book reader, parallel reader, parallel text reader, Parallel text view, dual language reader, dual text reader, language reader
• Translator in a book, AI translation books, e-reader with translation, e-reader with parallel text, translator app for books, epub translator, translate ebook
• Learn words from books — save with context, export to Anki or ReWord
• Bilingual library, language library — foreign books, FB2, EPUB, TXT and .srt as parallel text, bilingual stories, stories with translation

Reading and language learning by reading:
Read books in english, reading in English, reading in two languages, reading in a foreign language, reading in foreign languages, foreign language reading. Learn english by reading books, learn languages by reading, learn language by reading, learn language reading, learn english reading, learn Spanish by reading, learn French by reading, Spanish learning through reading, French learning through reading, language learning with stories, language learning through reading, language learning book, language learning reader. Dual language, dual language books, two language books, dual language stories, dual language reading.

Bilingual books — library:
English: books in English with parallel translation, books with translation, english books with translation, books with English translations, books in English, read English books, reading books in English, texts in English, text in English, english reader, english stories with translation, english novels, learn english with books free.

German: books in German, books in German with translations, books with translations into German, read German books, reading books in German, German reading.

French: books in French, books in French with translations, French books, read French books, reading books in French, french reader.

Spanish: books in Spanish, books in Spanish with translations, Spanish books, read Spanish books, reading books in Spanish, read a text in Spanish, reading Spanish texts.

Italian: Italian books, books in Italian, books in Italian with translations, read Italian books, reading books in Italian, books to learn Italian, texts in Italian, Italian reading.

Korean: books in Korean. Japanese: books in Japanese. Portuguese: books in Portuguese. Chinese: books in Chinese.

Russian: russian english books, read russian books, english russian parallel text.

Foreign language reading:
Books in a foreign language, books in foreign languages with translations, foreign books, read foreign books. Polyglot books, polyglot reader, polyglot reading. Books to learn English, Spanish, Italian, German, French. Books for language learning, learn languages with books.

Smart Book — bilingual book reader, parallel translation reader, parallel book reader, parallel book, reader with parallel translation. Bilingual reading app, parallel reading app, bilingual reading, bilingual novels, novels with translation, bilingual e-reader. Read and translate book, translate while reading.

Bilingual books for everyone. 2books. Supports ColorDict.
Read English books, English novels, parallel text & learn languages by reading
Updated on
1 Nov 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    Personal info, Financial info and 2 others
  • Data is encrypted in transit
  • You can request that data be deleted

Ratings and reviews

28.2K reviews
Just Jade
27 July 2026
I love this app for learning Spanish! I haven't been able to find an app that works like this one, though I will say that I'm a little disappointed because of the use of AI writing the stories as it's not always accurate to the way spanish natives speak the language. Fortunately there are alternatives to those books so other than that my experience has been great so far even without spending any money on the app!
3 people found this review helpful
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Stanislau Kurs
27 July 2026
I don't understand why is it 4 🥺 There is no AI written stories in Spanish in the app
Connor
18 September 2026
For me, this is the language-learning app I've been looking for. You can upload or paste in your own texts, it gives you easy access to translations for both words & entire sentences and it's super quick to save vocab words, there's hands-free narration, tons of customization options, etc.
5 people found this review helpful
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Stanislau Kurs
19 September 2026
Tell your friends about the app — it helps me out a lot! 💡 You can get free access to premium features for installs made through the referral link on your profile screen. 🚀 Or, you can get a subscription to support development. 🛠️ Feel free to leave any questions or suggestions at smart-book.net/feedback
Sarah
29 April 2026
I just started using this app but so far it seems great! I love the ability to customize all the colors, and being able to translate the text by word, phrase, sentence, or paragraph is so helpful! I also love that you can hear the text read out loud to understand the pronunciation. My only suggestion for improvement is that when you save a word, you should be able to select multiple parts of speech since many words function as more than one, such as an adjective and an adverb.
17 people found this review helpful
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Stanislau Kurs
29 April 2026
You can save them as Word

What's new

Added:
- Thousands of free books
- Ability to sort books into folders
- Tracking consecutive reading days
- Text justification
- Ability to add your own API keys for Gemini, Chutes, Huggingface, Deepseek and Perplexity