Book Translator: EPUB FB2 PDF is an innovative application designed for avid readers and language learners. This versatile reader supports various formats including EPUB, FB2, PDF, and TXT, allowing users to import their own books seamlessly. The standout feature is its built-in translation capability, enabling users to tap on any word for instant definitions or translate entire sentences without leaving the reading interface. The app leverages both online AI for contextual translations and offline models, making it suitable for use in low-signal areas or while traveling.

With support for over 59 languages, Book Translator caters to a wide audience, making it an excellent tool for language acquisition. The user-friendly interface is designed to minimize distractions, offering customizable themes and adjustable text settings for a personalized reading experience. Users can keep track of their reading progress and manage their library efficiently. While the app is free to start, a Premium subscription unlocks additional features, including unlimited online translations and enhanced offline capabilities.