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For technical questions, the FAQ on the homepage answers most of them faster than we can.
DualBook works with EPUB. Upload any EPUB and get a bilingual translation back as an EPUB, and audio as MP3 or M4B.
Translation speed depends on the book length and the chosen model. Most books are translated within 10-30 minutes. You can track progress in real-time from your dashboard.
Yes. Once translation is complete, you can download the bilingual book as an EPUB, or read it directly in our online reader. Audiobooks download as MP3 or M4B.