Book Translator: EPUB & PDF

In-app purchases
243 reviews
Content rating
Everyone
10K+
Downloads
Content rating
Everyone
In-App Purchases
Learn more
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About this app

Read and translate books in one app. This EPUB, PDF, FB2 and TXT reader is designed for seamless translation while reading.

Translate books instantly — tap any word, sentence or paragraph and see the translation without leaving the page. No switching apps, just read and translate. Turn on automatic translation to translate text as you read.

Read and translate books
• EPUB, PDF, FB2 and TXT reader
• Import your own books
• Translate books while reading
• Instant word, sentence and paragraph translation
• Automatic translation while reading
• No copy-paste or app switching

AI, online and offline translation
• AI-powered online translation in 59 languages
• Generous daily translation limit in the free version
• Unlimited translation with a monthly or yearly Premium subscription
• Offline translation for Premium users
• Download offline language packs directly from the reader
• Translation continues automatically after the required pack is downloaded

Bilingual reading
• Read books in foreign languages
• Translate while reading without interruptions
• Improve vocabulary in real context

Comfortable reading
• Clean and fast reader
• Smoother scrolling and improved performance
• Light and dark modes
• Adjustable fonts and layout
• Reading progress saved

Smart library
• Organize all your books
• Track reading progress
• Continue reading anytime
Translate books while reading EPUB & PDF. Auto translate; offline with Premium
Updated on
Aug 14, 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
    Location, Financial info and 3 others
  • Data is encrypted in transit
  • Data can’t be deleted

Ratings and reviews

215 reviews
Chahine A
May 6, 2026
this app is phenomenal, and it will make it way more efficient if the developers add the feature of reading both words and paragraphs in both languages (the original and the translated) especially with natural voices available lately. personally i find the feature of translating paragraph by paragraph helpful, and it will be a nice addition to the app if you provide the ability to translate whole books and documents (along with keeping the paragraph translation feature) keep up the great work👏
Did you find this helpful?
S1mpleDev
May 9, 2026
Thank you so much for the kind words and detailed feedback! I'm really glad you enjoy the app and find the paragraph translation useful. Your ideas about bilingual reading, natural voices, and full-book translation are excellent and already on my radar for future updates. Thanks again for the support! 🙌
Bok Choi
April 27, 2026
you can only translate one paragraph at a time. kinda lame. I'd like to be able to translate a whole book so I don't have to go paragraph for paragraph.
1 person found this review helpful
Did you find this helpful?
S1mpleDev
April 27, 2026
Thanks for the feedback! We totally get your point — translating paragraph by paragraph can feel limiting. Full-book translation is already in our plans, and we’re working on making it smooth and usable. Stay tuned 🙂
Emmanuel Kasekwa
August 11, 2026
Best for uses.
Did you find this helpful?
S1mpleDev
August 12, 2026
Thank you so much for the 5-star review! I’m really glad you’re enjoying the app and finding it useful. Your support means a lot!

What’s new

What's new:

• Downloaded books now appear reliably in your library.
• Auto-translated paragraphs are now counted correctly in Reading Progress.
• Improved Premium subscription and restore reliability.
• Added Contact Support in Settings.
• Fixed crashes and improved overall stability.