EPUB Translator vs BookTranslator: Price, Formats, Output

BookTranslator and EPUB Translator are both web apps that take a whole book and give it back translated. They differ in what goes in, how you pay, and how many languages come out. One thing to know first: "BookTranslator" is two unrelated products — BookTranslator.app and BookTranslator.ai. This page compares us mainly with the .app, the one most lists mean, and covers the .ai below.

BookTranslator facts were checked on booktranslator.app, its pricing page and booktranslator.ai on 2026-10-08. Where its own pages disagree, we say so.

At a glance

What BookTranslator.app is great at

• Formats. It takes PDF, EPUB, DOCX, MOBI and more, and offers OCR for scanned pages. We take EPUB and text-based PDFs only and reject scans.
• Languages. Its homepage lists 168 languages (elsewhere on the same site "100+"). Either way that is far more than our 18.
• Credits for heavy users. Credit packs start at $20 for 50,000 credits and never expire, and its own example puts a 50,000-word book at about 4,900 credits. If you translate several books, buying credits works out cheaper per book than its pay-as-you-go table.
• Privacy statement. It states that uploaded files and translations are never used to train AI models, and keeps history for 7 days.

Where EPUB Translator is the better fit

• No upfront pack. You pay for the one book in front of you — about $4.75 for a typical 500,000-character novel — and nothing more.
• Two EPUBs per book. Every translation comes back as both a translation-only EPUB and a bilingual EPUB, at one price.
• Built around EPUB structure. Chapters, images, footnotes and the table of contents are rebuilt intact, and names and terms stay consistent across the whole book.

Through 2026-10-31 (UTC) every per-character rate is half price; the regular rate is ⁦$0.008–$0.025⁩ per 1,000 characters.

BookTranslator.ai is a different product

BookTranslator.ai is a separate company with its own pricing. It is EPUB only and charges per book: about $6.99 per 100,000 words on Basic and $9.99 per 100,000 words on Pro, with a $6.99 minimum and a 7-day money-back guarantee.

Honest trade-offs

If your book is a PDF scan, a DOCX or a MOBI, or the language you need is not in our list, BookTranslator.app is the better choice. If you translate often, its credit packs can beat a per-book price. Choose EPUB Translator when you have one EPUB, want the finished EPUB back in both forms, and don't want to prepay for credits.

See also the best EPUB translators in 2026 and the cheapest way to translate a book.

FAQ

Is BookTranslator.app the same as BookTranslator.ai?

No. They are unrelated products. BookTranslator.app (Lovin, LLC) handles PDF, EPUB, DOCX, MOBI and more and charges per task or with credits. BookTranslator.ai is EPUB-only and charges per book by word count.

How much does BookTranslator cost?

BookTranslator.app's pay-as-you-go price starts at $3.99 for up to 30,000 words and is $11.99 for 100,000–150,000 words; credit packs start at $20 for 50,000 credits. BookTranslator.ai charges about $6.99 per 100,000 words on Basic, with a $6.99 minimum.

Is there a BookTranslator alternative that charges once per book?

EPUB Translator charges once per book by character count, with a $3.99 minimum and no plan or credit pack. A typical 500,000-character novel costs about $4.75, and the exact price is shown before you pay.

Which one supports more languages?

BookTranslator.app, by a wide margin: its homepage lists 168 languages, while EPUB Translator translates into 18 target languages.

Do both make bilingual EPUBs?

Yes. BookTranslator.app offers a bilingual copy, and EPUB Translator includes a bilingual EPUB alongside the translation-only file with every book.