TeaderBook opens the books you already have — FB2 and EPUB — and translates a word or a
whole sentence when you tap it, without leaving the page you are reading.
Your own books. Nothing to buy from a catalogue: bring the file.
Any source language, chosen by you rather than assumed.
You pick how it translates. Offline translation and Offline words work
with no account and no connection; Smart translation goes online and is best at a long
sentence.
What you read stays on your phone. Books, reading positions and saved
words are never uploaded.