Comparison

DeftPDF Document Translator vs Immersive Book Translator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

DeftPDF Document Translator

Instantly translate documents in various formats like PDF, Docx, and Txt into over 130 languages. This app preserves document layout and supports large files, including scanned PDFs using OCR technology. No registration or watermarks are required.

Highlights
  • Translate 130+ languages
  • Supports PDF, Docx, Pptx, Xlsx, Txt, Html
  • Preserves document layout
  • OCR for scanned PDFs
  • Large file support (500+ pages)
  • No registration required
  • No watermarks
Features
Read full description

Translate PDF, DOCX, PPTX, XLSX, TXT, and HTML files into 137 languages in seconds. DeftPDF helps preserve the original layout of your document, so your translated file stays easy to read and share. Key features: • Translate PDF, DOCX, PPTX, XLSX, TXT, and HTML files • Support for 137 languages • Preserve document layout and formatting as much as possible • Translate scanned PDFs with built-in OCR • No DeftPDF account required • No watermark on translated files • Keep files private with automatic deletion after 5 hours Additional information: • Translation requires payment • No subscription required • Pricing varies by region • Supports up to 200 billable pages per document

About

Immersive Book Translator

Read any ePub ebook in your preferred language with high-quality AI translation. Enjoy an immersive reading experience with customizable settings and full-text downloads.

Highlights
  • AI-powered translation
  • Supports major languages
  • Immersive reading experience
  • Customizable interface
  • Full-text download
  • iPad double-page layout
Features
Read full description

Immersive EPub Translator is an immersive reading app that can translate EPub ebooks from the world's major languages to your language, and provide you with an excellent ebook reading experience. From now on, language is no longer a barrier to your reading, enjoy the rich and great knowledge base of the world! Main features: - Provide high-quality translation through the latest mainstream AI services, and no need to pay for the translation of each book. - Support most of the world's major languages. ¹ - Immersive reading experience, comparable to the best Epub reading apps. - Beautiful and easy-to-use user interface. - Rich functionality settings: themes, custom fonts, font size, line spacing, margins, indentation, etc. - Star, catalog and quick jump. - Full-text download after translation. - iPad horizontal screen double-page layout. ¹ For a detailed list of supported languages and regions, see: http://bit.ly/epub_trans_list Term of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy: https://bit.ly/imms_epub_pp

Screenshots

DeftPDF Document Translator4 screens
Immersive Book Translator4 screens

Verdict

The call

DeftPDF Document Translator and Immersive Book Translator both sit at 3.0 stars, but that hides the real split: 50% of DeftPDF Document Translator's written reviews are positive against 0% of Immersive Book Translator's. DeftPDF Document Translator also leads on iOS requirement (15.0 vs 17.0). On price, rating, ratings volume and update cadence there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. DeftPDF Document Translator sells 20 one-off in-app purchases and Immersive Book Translator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 3.0 for DeftPDF Document Translator against 3.0 for Immersive Book Translator. Both are backed by a comparable volume of ratings — 2 and 4 respectively. Written reviews are what separate them: 50% of DeftPDF Document Translator's written reviews are positive against 0% of Immersive Book Translator's.

UpkeepUpdate frequency

DeftPDF Document Translator ships an update weekly, Immersive Book Translator every 8 days. The most recent releases landed on September 9, 2026 and September 21, 2026 respectively.

Scorecard2 real differences · 8 level
DeftPDF Document Translator versus Immersive Book Translator: the parameters behind the verdict, then further details
ParameterDeftPDF Document TranslatorImmersive Book Translator
PriceFreeFree
Rating3.0 (2 ratings)3.0 (4 ratings)
Positive reviews50.0% of reviews — better0.0% of reviews
Number of ratings24 — better
Update frequencyWeekly — betterEvery 8 days
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS15.0 — better17.0
Further details — not scored
Size26 MB5 MB
Age rating4+4+
DeveloperSictec Infotech实 许

Customer experience

DeftPDF Document Translator

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Immersive Book Translator

All ratings4 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

20 purchases

DeftPDF Document Translator

One-time20
  • Translate file$0.49
  • Translate file$0.99
  • Translate file$1.00
Show 17 more
  • Translate file$1.99
  • Translate file$2.99
  • Translate file$3.00
  • Translate file$3.99
  • Translate file$4.99
  • Translate file$5.99
  • Translate file$6.99
  • Translate file$7.99
  • Translate file$8.99
  • Translate file$9.99
  • Translate file$11.99
  • Translate file$14.99
  • Translate file$18.99
  • Translate file$449.99
  • Translate file$499.99
  • Translate file$599.99
  • Translate file$699.99
1 purchases

Immersive Book Translator

One-time1
  • Permanent License(own API key)$9.99

Questions

Is DeftPDF Document Translator free?
DeftPDF Document Translator is free to download, with in-app purchases available.
Is Immersive Book Translator free?
Immersive Book Translator is free to download, with in-app purchases available.
Which has better reviews, DeftPDF Document Translator or Immersive Book Translator?
DeftPDF Document Translator and Immersive Book Translator are both rated 3.0 out of 5 on the App Store, from 2 and 4 ratings respectively.
Do DeftPDF Document Translator or Immersive Book Translator have ads?
Neither DeftPDF Document Translator nor Immersive Book Translator shows ads.
Which is updated more often, DeftPDF Document Translator or Immersive Book Translator?
DeftPDF Document Translator ships an update weekly, and Immersive Book Translator every 8 days. Most recently, DeftPDF Document Translator was updated on September 9, 2026 and Immersive Book Translator on September 21, 2026.

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