Comparison

PDF Translator vs UPDF

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

Head to head
About

PDF Translator

Instantly translate and edit PDF documents and various file formats across 136 languages. Preserve formatting and layout with powerful translation and editing tools. Access translations seamlessly from any app.

Highlights
  • Translate PDFs, images, Word, Excel, PowerPoint
  • Edit PDF text and images
  • Translate multilingual PDFs
  • Choose translation engine (Google/Microsoft)
  • Unlimited page and MB translation
  • Language Detection
  • Scan, convert, and translate photos
Features
Read full description

TRANSLATE PDF, WORD, EXCEL AND POWERPOINT — AND KEEP THE LAYOUT Most translators hand you back a wall of text. PDF Translator hands you back your document: the same tables, the same columns, the same letterhead and the same page breaks — in a new language. Try it before you pay. No account, no card. KEEPS YOUR FORMATTING - Tables stay tables and columns stay aligned. - Logos, headers, footers and images stay exactly where they were. - Page layout is preserved, so a translated contract still reads like a contract. - Documents that mix several languages can be translated into one single language. EVERY DOCUMENT YOU ACTUALLY WORK WITH - PDF, Word (.docx), Excel (.xlsx), PowerPoint (.pptx) and photos. - Scanned paperwork: built-in OCR reads the page first, then translates it. - Long documents: split and translated automatically, however many pages. - Up to 133 languages, with automatic language detection. TRANSLATE WITHOUT LEAVING THE APP YOU ARE IN Share a document straight from Mail, Files, Safari or any other app using the built-in extension, and get the translated file back without switching apps. STRAIGHT ANSWERS ON CREDITS - One page costs one credit, and you see the page count before anything is spent. - If a translation fails, the credit goes back into your balance automatically. - No machine-translation watermark on your translated documents. A FULL PDF TOOLKIT AS WELL - Edit the text and images inside a PDF. - Compress a PDF to reduce its file size. - Split, merge and scan, and convert photos into PDF. - Rename, save and share your files, with full Dark Mode support. CHOOSE YOUR ENGINE Translate with Microsoft or Google, whichever you prefer for your language pair. Built for iPhone, iPad and Mac. Terms of service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy: https://www.pdftranslator.dk/privacy-policy

About

UPDF

This app is a powerful PDF editor for mobile devices, offering AI-powered features for summarizing, translating, and chatting with documents. It allows users to read, edit, annotate, convert, and sign PDFs, as well as scan paper documents into editable files. Manage all your PDF files and protect them with security features.

Highlights
  • AI-powered summarization and translation
  • Edit text, images, and watermarks in PDFs
  • Annotate with various markup tools
  • Convert PDFs to Word, Excel, and PPT
  • Scan documents to editable PDFs
  • Sign and fill PDF forms
  • Organize and protect PDF files
Features
Read full description

UPDF for iOS is an AI-powered PDF editor for iPhone and iPad. Read, edit, annotate, convert, sign, and AI chat with your PDFs — all from your iOS device. Summarize lengthy documents, translate full PDFs, scan paper to PDF, and manage all your files in one place. Amazing features of UPDF for iOS: Edit PDF - Edit text in PDF (change color, font style, font size) - Edit images in PDF (rotate, extract, replace, and crop images) - Edit watermark in PDF (add, edit, delete and favor watermark) - Edit links in PDF (add, edit, copy, and delete) AI Assistant - Summarize, translate, explain, and rephrase lengthy PDFs in minutes. - Engage in a chat with UPDF AI and ask it any questions you have. - Summarize or translate PDF by pages. - Export conversations to Markdown or TXT files. - NEW AI Bookmark Agent: Auto-generate bookmarks and get instant section summaries for any PDF. - NEW AI Semantic Search: Search your PDF by meaning, not just exact words. - NEW AI Editing Suite: Rewrite, refine tone, or correct grammar directly. Read PDF - Flexible reading: vertical and horizontal scrolling, single page or two-page view - Dark mode to protect your eyes - Add and manage bookmarks with AI Bookmark Agent's help - Search text in PDF - Present PDF as a slideshow - Text-to-speech support Annotate PDF - Annotate PDFs using markup tools: pencil, highlight, underline, strikethrough, squiggly line - Add text boxes, text comments, callouts, sticky notes - Add shapes, stamps, and stickers to PDFs - Free-hand drawing on PDF pages OCR PDF - Convert scanned documents and images into searchable and editable PDFs - Recognize text in 38 languages Scan to PDF - Scan physical documents to PDF with your camera - Scan ID cards onto one page - Crop, rotate, and filter scanned images Convert PDF - Convert PDF to Word, Excel, PPT, and images Organize PDF Pages - Insert, replace, extract, split, rotate, remove, and reorder pages in PDFs - Merge multiple PDFs into one file - Copy, paste, and share specific pages in a PDF Sign PDF & Fill PDF Form - Create handwritten signatures - Import and add image signatures - Fill PDF form and add e-signatures - Save signatures to cloud for cross-platform use Create PDF - Create PDF with blank, lined, dotted, grid, and graph papers - Combine multiple files/images into one PDF Protect PDF - Password-protect PDFs to restrict opening, editing, and printing - Add or remove watermarks - Add digital signatures Manage Files - Upload, create, rename, move, copy, duplicate, and organize files or folders - Unzip files by simply tapping .zip files - Search for files - Supports two-finger multiple selections and operations - Move files or folders to trash, and find deleted items in the trash - Protect PDF files with a password or unlock protected PDF files - Compress one or multiple files into a zip file Security Space - Protect your privacy by moving files or folders to Security Space - Enable Face ID & Passcode to access your Security Space Import File - Import files from Photos albums - Import files from the Files App - Transfer files from a computer over the same Wi-Fi View files in All Formats - Browse dozens of different file formats including PDFs, Office documents (.doc, .docx, .ppt, .pptx, .xls, .xlsx), Pages, Keynotes, and Numbers with a single app - Open other formats such as text, HTML, XML, Web Archive, Images (JPG, JPEG, GIF, PNG, TIFF, SVG, BMP), video, audio *** Pro Features of In-App Purchase *** - Use UPDF across all platforms including desktops and mobiles - Free Users will get 1 GB of Cloud Storage; Paid users will get 10 GB of Cloud Storage for free - Advanced PDF features such as Convert PDF with OCR, batch process, etc. are available on the desktop - Unlimited use of Scan to PDF (Free trial only scans up to 5 pages) - Unlimited use of Security Space (Trial version stores up to 10 items) - Secure App with passcode/TouchID/FaceID Need help? Email us at support@superace.com

Screenshots

PDF Translator4 screens
UPDF4 screens

Verdict

The call

The clearest difference is review sentiment: UPDF at 84% against PDF Translator's 17%. UPDF also leads on rating (4.6 vs 4.2) and update cadence (fortnightly vs monthly). On price, ratings volume, ads and in-app purchases 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. PDF Translator sells 13 in-app purchases, starting at $7.99 per 7 days and UPDF sells 13 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

UPDF holds the better App Store score, 4.6 against 4.2. Both are backed by a comparable volume of ratings — 478 and 701 respectively. Written reviews point the same way: 17% of PDF Translator's written reviews are positive against 84% of UPDF's.

UpkeepUpdate frequency

PDF Translator ships an update monthly, UPDF fortnightly. Both last shipped on November 3, 2026.

Scorecard3 real differences · 7 level
PDF Translator versus UPDF: the parameters behind the verdict, then further details
ParameterPDF TranslatorUPDF
PriceFreeFree
Rating4.2 (478 ratings)4.6 (701 ratings) — better
Positive reviews17.2% of reviews84.3% of reviews — better
Number of ratings478701 — better
Update frequencyMonthlyFortnightly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS15.014.0 — better
Further details — not scored
Size103 MB195 MB
Age rating4+4+
DeveloperAlex Gameli HeymanSuperace Software Technology Co., Ltd.

Customer experience

PDF Translator

All ratings478 ratings
Positive79.5%
Neutral2.1%
Negative18.4%
Written reviews204 reviews
Positive17.2%
Neutral2.0%
Negative80.9%

UPDF

All ratings678 ratings
Positive90.6%
Neutral1.9%
Negative7.5%
Written reviews937 reviews
Positive84.3%
Neutral5.3%
Negative10.4%

User reviews

PDF Translator

From 478 App Store ratings

What we love

  • ✅ Preserves document layout and formatting
  • ✅ Maintains images and graphics in PDFs
  • ✅ Fast translation processing
  • ✅ Supports multiple language pairs
  • ✅ Responsive customer support (when contacted)

Room to improve

  • 💰 Expensive pricing model (€0.99-€3+ per page)
  • ❌ Frequent server errors and crashes
  • ❌ Translation failures despite payment
  • ❌ Credits deducted without successful translation
  • ❌ Poor translation quality (gibberish, garbled text)

UPDF

From 701 App Store ratings

What we love

  • 🚀 Excellent PDF editor
  • 👍 Intuitive and easy to use
  • 🔒 Secure file management
  • 💡 Powerful features like AI-powered summarization
  • 🚀 Fast and responsive performance

Room to improve

  • 🐛 Occasional crashes or stability issues
  • 💡 Need for more customization options
  • 💡 Lack of integration with third-party cloud storage
  • 🐛 Issues with handwriting recognition and annotation

Bugs and requests

PDF Translator

Reported bugs

13 issues
  • Server errors preventing translation completion
  • App crashes when opening or uploading PDFs
  • Credits deducted despite failed translations
  • Text rendered as gibberish or random characters
  • Overlapping of original and translated text
Show 8 more
  • Missing text sections in translated documents
  • Incorrect font sizes and spacing in output
  • Language detection failures
  • Translated text not saving properly
  • Payment processing issues
  • Credits not appearing after purchase
  • Inconsistent translation quality across documents
  • Watermark artifacts appearing in output

Requested features

10 requests
  • Subscription-based pricing (monthly/yearly/lifetime) instead of per-page
  • Free trial with full functionality before purchase
  • Automatic language detection without manual selection
  • Batch processing for multiple documents
  • Edit functionality for translated text
Show 5 more
  • Document preview before payment
  • Transparent pricing information before download
  • Better language selection interface
  • Support for image text translation
  • Offline translation capability

UPDF

Reported bugs

3 issues
  • Inability to edit text directly in PDF files
  • Inconsistent behavior when switching between devices
  • Occasional loss of editing progress when app is minimized

Requested features

5 requests
  • Add password protection for PDF files
  • Improve file organization and folder management
  • Implement keyboard shortcuts for power users
  • Expand OCR capabilities and text extraction
  • Allow custom signature and stamp imports

In-app purchases

13 purchases

PDF Translator

Subscriptions6
  • PDF Translator Weekly3 Days trial$7.997 Days
  • PDF Editor Monthly$9.991 Month
  • PDF Translator Lite$12.991 Month
Show 3 more
  • PDF Translator Standard$19.991 Month
  • PDF Translator Premium$69.991 Month
  • PDF Editor Yearly Access$99.991 Year
One-time7
  • PDF Translate 3 Pages$0.99
  • PDF Translate 10 Pages$2.99
  • PDF Translate 20 Pages$3.99
Show 4 more
  • PDF Translate 50 Pages$12.99
  • PDF Translate 100 Pages$19.99
  • PDF Translator 200 Pages$39.99
  • PDF Translate 500 Pages$84.99
13 purchases

UPDF

Subscriptions10
  • Monthly Subscription$9.991 Month
  • UPDF AI Unlimited$15.001 Month
  • UPDF AI Standard$15.001 Month
Show 7 more
  • UPDF Pro + AI Unlimited$18.991 Month
  • Quarterly Subscription$19.003 Months
  • Annual Subscription$49.991 Year
  • UPDF AI Standard$69.001 Year
  • UPDF AI Unlimited$79.001 Year
  • UPDF Pro + AI Standard$98.991 Year
  • UPDF Pro + AI Unlimited$118.991 Year
One-time3
  • Perpetual License$79.99
  • Perpetual License$128.99
  • UPDF & AI Add-on for iOS$148.99

Questions

Is PDF Translator free?
PDF Translator is free to download, with in-app purchases available.
Is UPDF free?
UPDF is free to download, with in-app purchases available.
Which has better reviews, PDF Translator or UPDF?
UPDF is rated higher. PDF Translator averages 4.2 out of 5 from 478 ratings, while UPDF averages 4.6 from 701 ratings.
Do PDF Translator or UPDF have ads?
Neither PDF Translator nor UPDF shows ads.
Which is updated more often, PDF Translator or UPDF?
PDF Translator ships an update monthly, and UPDF fortnightly. Most recently, PDF Translator was updated on November 3, 2026 and UPDF on November 3, 2026.

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