Comparison

AI PDF Translate 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

AI PDF Translate

Features
Read full description

Translating a PDF used to mean copying text into a browser tab, losing all formatting in the process, then manually fixing terms the translator got wrong. This app handles the whole document at once โ€” keeping the layout as close to the original as possible โ€” so what you get back is actually readable. TRANSLATION ENGINES Free users get Google Translate and Bing. Paid plans unlock GPT-4o, Gemini 2.5 Flash, DeepSeek, and Doubao. For academic papers and technical documentation, DeepSeek and GPT-4o handle domain-specific terminology more accurately. For quick turnarounds on everyday documents, Google is plenty. You choose the engine; you're not locked into one. BILINGUAL MODE When turned on, the original text and translation appear on alternating pages in the same file. Useful for cross-referencing the source, or for anyone studying a foreign language alongside a translation. BACKGROUND PROCESSING Translation runs on the server. Once you submit a file, you can close the app and do something else. You'll get a push notification when it's ready to download โ€” no need to keep the screen on or wait around. WHAT IT HANDLES Academic papers, patent filings, technical manuals, financial reports, legal contracts โ€” if it's a PDF, you can submit it for translation. PLANS ยท Free: A monthly page allowance that resets each month, Google Translate only ยท Basic: 150 pages/month, all engines ยท Pro: 500 pages/month, all engines, priority queue ยท Credits: No subscription required โ€” buy a block of pages and use them whenever Subscriptions are billed through Apple and can be cancelled at any time in your device settings. Terms of Use: https://pdf.zentools.me/terms

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

AI PDF Translate4 screens
PdfTranslator4 screens

Verdict

The call

The clearest difference is iOS requirement: AI PDF Translate at 15.1 against PdfTranslator's 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. AI PDF Translate sells 4 in-app purchases, starting at $6.99 per month 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.

Scorecard1 real difference ยท 5 level
AI PDF Translate versus PdfTranslator: the parameters behind the verdict, then further details
ParameterAI PDF TranslatePdfTranslator
PriceFreeFree
Update frequencyโ€”Fortnightly
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 โ€” better26.0
Further details โ€” not scored
Size38 MB94 MB
Age rating4+4+
Developer่พ‰ ๅดๆบ ไฝ•

In-app purchases

4 purchases

AI PDF Translate

Subscriptions2
  • Basic Plan$6.991 Month
  • Pro Plan$19.991 Month
One-time2
  • 50 Credits$2.99
  • 200 Credits$9.99
2 purchases

PdfTranslator

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

Questions

Is AI PDF Translate free?
AI PDF Translate is free to download, with in-app purchases available.
Is PdfTranslator free?
PdfTranslator is free to download, with in-app purchases available.
Do AI PDF Translate or PdfTranslator have ads?
Neither AI PDF Translate nor PdfTranslator shows ads.

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