Tap to translate
Long‑tap any word, sentence or paragraph for an instant, context‑aware translation while you read.
Smart Book shows the original and its translation side by side. Long‑tap any word, sentence or paragraph for an instant, context‑aware translation — and keep reading.
From a single tap‑to‑translate to your own AI commands — scroll through what Smart Book can do.
Long‑tap any word, sentence or paragraph for an instant, context‑aware translation while you read.
Compare Google, DeepL, Reverso, Yandex, Microsoft, Oxford and more, and switch between them in a single tap.
Context translation, usage, etymology and grammar analysis — or create your own AI commands and bring your own API key.
Native‑speaker and AI pronunciation, definitions and parallel translation across roughly one hundred languages.
A free built‑in library, plus your own FB2, EPUB and TXT books — and even .SRT subtitles read as parallel text.
Smart Book is a bilingual ebook reader that shows the original text and its translation side by side, so you learn languages by reading the books and stories you love. Long-tap any word, sentence, paragraph or whole chapter for an instant, context-aware translation while reading — and switch between Google Translate, DeepL, Reverso Context, ChatGPT, Claude, Gemini and Yandex in a single tap.
Read from a free built-in library of bilingual stories, or load your own FB2, EPUB and TXT books, and even import .SRT subtitles as parallel text. Save unfamiliar words together with their context to a personal dictionary for spaced-repetition review, and export them to Anki or ReWord. Listen to native-speaker and AI pronunciation, or turn a whole chapter into audio.
Smart Book is free to use, supports around 100 languages, and is available on iOS and Android. Optional PRO (one-time) and MAX (subscription) plans unlock contextual AI translation and custom AI actions, and you can always bring your own API key.