Comparison

PDFex vs PdfTranslator

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

Head to head
About

PDFex

Features
Read full description

Read in another language. Understand more. Remember what matters. PDFex helps you translate documents and turn your content into useful study material, all in one place. TRANSLATE YOUR PDFs Translate text-based PDFs while retaining their layout where possible. Open the translated PDF in the app, then save or share it. Scanned PDFs use text recognition and produce a readable translated PDF; their original layout is not retained. TURN CONTENT INTO STUDY MATERIAL Create concise summaries, quizzes, flashcards, matching exercises, fill-in-the-blank exercises and open-ended questions. Review wrong quiz answers and return to saved study progress. START WITH THE CONTENT YOU HAVE Import a PDF or text document, paste a supported YouTube link, upload an audio file, or translate text from a photo. YouTube captions must be available; supported formats and size limits apply. KEEP YOUR RESULTS TOGETHER Search your library, filter by result type, mark favorites and rename results so you can find them again. MADE FOR EVERYDAY READING AND LEARNING Use PDFex to explore an article, review course material, understand a document or practice what you have learned. AI-generated content can contain mistakes; check important information against your source. SUBSCRIPTION AND CREDITS An active subscription is required to create results. Each plan includes a credit quota, and the app shows the estimated credit cost before you start. On renewal, credits reset to the plan quota; unused credits do not carry over. Document length, file size and page limits apply. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.erayjs.com/pdfex/privacy

About

PdfTranslator

Features
Read full description

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

Screenshots

PDFex4 screens
PdfTranslator4 screens

Verdict

The call

The clearest difference is update cadence: PDFex at daily against PdfTranslator's fortnightly. PDFex also leads on iOS requirement (16.4 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. PDFex sells 3 in-app purchases, starting at $2.99 per 7 days and PdfTranslator sells 2 in-app purchases, starting at $14.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

PDFex ships an update daily, PdfTranslator fortnightly. The most recent releases landed on October 10, 2026 and October 7, 2026 respectively.

Scorecard2 real differences ยท 4 level
PDFex versus PdfTranslator: the parameters behind the verdict, then further details
ParameterPDFexPdfTranslator
PriceFreeFree
Update frequencyDaily โ€” betterFortnightly
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.4 โ€” better26.0
Further details โ€” not scored
Size61 MB96 MB
Age rating4+4+
DeveloperEray Can Topcuๆบ ไฝ•

In-app purchases

3 purchases

PDFex

Subscriptions3
  • Weekly$2.997 Days
  • Monthly$9.991 Month
  • Yearly$89.991 Year
2 purchases

PdfTranslator

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

Questions

Is PDFex free?
PDFex is free to download, with in-app purchases available.
Is PdfTranslator free?
PdfTranslator is free to download, with in-app purchases available.
Do PDFex or PdfTranslator have ads?
Neither PDFex nor PdfTranslator shows ads.
Which is updated more often, PDFex or PdfTranslator?
PDFex ships an update daily, and PdfTranslator fortnightly. Most recently, PDFex was updated on October 10, 2026 and PdfTranslator on October 7, 2026.

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