Comparison

Scan Master vs UPDF

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

Head to head
About

Scan Master

This app allows you to scan documents into high-quality PDFs or images. It offers features for file transfer, conversion of various file types to PDF, and a robust PDF reader. You can easily share, print, or save your scanned documents for future use.

Highlights
  • Scan documents to PDF/image
  • Optimize scan quality
  • File transfer via USB/WIFI
  • Convert various file types to PDF
  • Advanced PDF reader
  • Document viewer for multiple formats
  • Email and print documents
Features
Read full description

Scan Master is the advanced scanner app that scan document into clean PDF/image and send as email, print or save for future use. PDF Scanner: - Optimise scan quality by cropping and make the texts and graphics look sharp and clear. - Scan Master is useful to scan bill, invoice, contract, bill, business card, certificate, letter, identity documents. File Transfer: - Use iTunes file sharing to transfer files directly to your device via USB cable and WIFI - Open in File feature to open the document in different app like Numbers, Pages, iBooks, Kindle - Import PDF from other apps. - Import Image files from other apps. - Sorting files based on date, size and name PDF Converter: - Convert image, documents (MS Office, iWorks and the most common file types) to PDF - Build in web browser and convert web pages to PDFs for offline reading on the iPhone or iPad PDF Reader: - Advances PDF reader to read in all orientations - Supports Encrypted (password protected) PDFs - PDF links to open URL in browser directly - Supports PDFs with rotated pages Document Viewer: - Document Viewer supports PDF, HTML, TXT, RTF, JPG, PNG, GIF, MS Office (Word, Excel and Powerpoint) and Apple iWork (Pages, Numbers and Keynote) files, etc - Print documents from Doc Scanner easily - Email files to Your Friends or Colleagues directly from My PDF Doc - Zoom PDFs and other documents

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

Scan Master4 screens
UPDF4 screens

Verdict

The call

The clearest difference is ads: UPDF at none against Scan Master's shown. UPDF also leads on ratings volume (697 vs 1) and update cadence (fortnightly vs every 2 months). Scan Master's advantage is rating (5.0 vs 4.6). On price, in-app purchases, monetization model and device support 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. Scan Master sells 1 one-off in-app purchase 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

Scan Master holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: UPDF has 697 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 67% of Scan Master's written reviews are positive against 84% of UPDF's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Scan Master ships an update every 2 months, UPDF fortnightly. The most recent releases landed on October 9, 2026 and October 27, 2026 respectively.

Scorecard5 real differences · 5 level
Scan Master versus UPDF: the parameters behind the verdict, then further details
ParameterScan MasterUPDF
PriceFreeFree
Rating5.0 (1 ratings) — better4.6 (697 ratings)
Positive reviews66.7% of reviews84.3% of reviews — better
Number of ratings1697 — better
Update frequencyEvery 2 monthsFortnightly — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.014.0
Further details — not scored
Size11 MB195 MB
Age rating4+4+
DeveloperGURUPRITSINGH SAINISuperace Software Technology Co., Ltd.

Customer experience

Scan Master

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

UPDF

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

Bugs and requests

Scan Master

Not enough reviews yet to summarise bugs or requests.

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

1 purchases

Scan Master

One-time1
  • Remove Advertisements$1.99
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 Scan Master free?
Scan Master 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, Scan Master or UPDF?
Scan Master is rated higher. Scan Master averages 5.0 out of 5 from 1 ratings, while UPDF averages 4.6 from 697 ratings.
Do Scan Master or UPDF have ads?
Scan Master shows ads; UPDF does not.
Which is updated more often, Scan Master or UPDF?
Scan Master ships an update every 2 months, and UPDF fortnightly. Most recently, Scan Master was updated on October 9, 2026 and UPDF on October 27, 2026.

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