Comparison

PdfTranslator vs Doc Translator

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

Head to head
About

PdfTranslator

Features
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PdfTranslator: Professional AI Translator Keeping Original Layout. Deeply optimized for various mainstream document types including academic papers, business contracts, patent documents, and presentations. One-tap mutual translation, keeping the original formatting intact. Now optimized for iPad, with annotation and note mode. [ Core Advantages ] - Keep Original Layout: Deeply analyzes the underlying PDF grid. The translated text is perfectly embedded into its original position. Images, charts, tables, and multi-column layouts remain fully intact without shifting, offering a native reading experience. - Dual Translation Engines: Supports both a built-in local translation engine for 100% offline translation and an AI translation engine powered by the latest large language models (LLMs). - 100% Local & Offline: With the local engine, PDF layout analysis, rendering, and translation are completed entirely on your device with zero internet dependence. Medical records, unpublished papers, and confidential business contracts never leave your device, preventing privacy leaks from the source. - Cutting-Edge LLM Driven: Say goodbye to rigid word-for-word translation. The AI engine leverages the latest large language models for deep contextual understanding and semantic reorganization, delivering precise terminology and natural, fluent translations. Only the text fragments needed for translation are sent โ€” your full document is never uploaded, and your translation data is never stored. - Smart Layout Optimization: Intelligently recognizes document elements such as titles and paragraphs. It dynamically plans the display position and font size of the translated text, optimizing readability while respecting the original layout. - Annotation & Note Mode: Mark up PDFs with pen, pencil, highlighter, and lasso tools โ€” precision-tuned for Apple Pencil with palm rejection. Take handwritten notes directly on the page while reading, alongside the translation. [ Features ] - Flexible View Modes: Switch freely among "Original Text Only", "Translated Text Only", and "Bilingual Parallel Translation" modes. - Academic Journal Adaptation: Specially optimized for mainstream academic journal PDFs, perfectly handling complex chart hyphenation and formula text wrapping. - Comprehensive Multilingual Support: Easily translate among over 20 mainstream languages, including English, Japanese, Korean, German, French, and Spanish. - Hardware Acceleration: Fully leverages the computing power of Apple Silicon chips to process hundred-page documents in seconds, providing instant local rendering without the wait. - Scanned Document Support: Built-in OCR capabilities ensure scanned PDFs and documents achieve the exact same layout recognition and high-quality translation results. - Native iPad Support: Optimized for iPadOS with Apple Pencil and Split View, delivering a seamless large-screen reading experience. [ Target Audience ] - Researchers & Students: Swiftly conquer foreign-language academic papers and seamlessly track global research trends. - Legal & Business Professionals: Review commercial contracts, industry whitepapers, and patent specifications offline with total peace of mind. - Avid Readers: Read imported original PDF e-books and long technical manuals without any language barriers. [ Auto-Renewable Subscription Terms ] - Subscription & Pricing: You can subscribe monthly to unlock all premium features. Actual pricing will be displayed inside the app. - Auto-Renewal: Your Apple ID account will be charged for renewal within 24 hours prior to the end of the current period. Once charged, the subscription automatically renews. - Cancellation: To cancel, please turn off auto-renew manually in your iOS Account Settings at least 24 hours before the end of the current billing cycle. Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://pdf-translator.hyv5.cn/privacy

About

Doc Translator

Read full description

TRANSLATE DOCUMENTS. KEEP THE LAYOUT. Doc Translator uses accurate AI to translate complete documents into 100+ languages, including English, Spanish, French, German, and Arabic, while preserving the original layout and formatting. WORK WITH THE FILES YOU ALREADY USE Translate PDF, Word, Excel, PowerPoint, EPUB, images, subtitles, and more. With support for 30+ file types, you can translate reports, presentations, spreadsheets, books, manuals, research papers, resumes, and localization files. KEEP YOUR DOCUMENT INTACT โ€ข Preserve page layouts, tables, columns, images, and styles โ€ข Use OCR to translate scans and text inside images โ€ข Track progress and access recent translations SIMPLE WORKFLOW 1. Upload a file 2. Choose the target language and translation options 3. Review the credit cost 4. Download the translated file

Screenshots

PdfTranslator4 screens
Doc Translator4 screens

Verdict

The call

The clearest difference is update cadence: Doc Translator at daily against PdfTranslator's fortnightly. Doc Translator also leads on iOS requirement (18.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. PdfTranslator sells 2 in-app purchases, starting at $14.99 per month and Doc Translator sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

PdfTranslator ships an update fortnightly, Doc Translator daily. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.

Scorecard2 real differences ยท 4 level
PdfTranslator versus Doc Translator: the parameters behind the verdict, then further details
ParameterPdfTranslatorDoc Translator
PriceFreeFree
Update frequencyFortnightlyDaily โ€” better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.018.0 โ€” better
Further details โ€” not scored
Size96 MB18 MB
Age rating4+4+
Developerๆบ ไฝ•็‚œๆกข ๅ•

In-app purchases

2 purchases

PdfTranslator

Subscriptions2
  • Monthly Subscription1 Month trial$14.991 Month
  • Annual Subscription$119.991 Year
4 purchases

Doc Translator

One-time4
  • 100 Credits$2.99
  • 300 Credits$7.99
  • 1000 Credits$24.99
Show 1 more
  • 3000 Credits$69.99

Questions

Is PdfTranslator free?
PdfTranslator is free to download, with in-app purchases available.
Is Doc Translator free?
Doc Translator is free to download, with in-app purchases available.
Do PdfTranslator or Doc Translator have ads?
Neither PdfTranslator nor Doc Translator shows ads.
Which is updated more often, PdfTranslator or Doc Translator?
PdfTranslator ships an update fortnightly, and Doc Translator daily. Most recently, PdfTranslator was updated on October 7, 2026 and Doc Translator on October 12, 2026.

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