Comparison

PDF Reader Pro Edition® vs One Scan

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

Head to head
About

PDF Reader Pro Edition®

This powerful application allows users to read, manage, edit, and annotate PDF files on iOS devices. It offers real-time online collaboration, form filling, and advanced annotation tools. Create, organize, and secure your PDF documents with ease.

Highlights
  • Real-time online collaboration and chat
  • Fillable PDF forms
  • Extensive annotation tools (highlight, notes, signature)
  • EasyReview mode for text markup
  • Create new PDF files
  • Secure Vault folder
  • Built-in scanner
Features
Currently charting
Read full description

**Winner of the Tabby Awards for best iPad- Productivity/Documents App** PDF Reader Pro Edition is the best app to read, manage and annotate PDF files and it works beautifully on iOS 12. The most powerful PDF reader, carefully designed and optimized specially for the iPhone & iPad. The best mobile PDF reader for your iPad Pro and Apple Pencil. Part of the @work campaign by Apple. Some of the great features of PDF Reader Pro Edition are: • Real-time online collaboration & chat Now you can collaborate and add annotations with other users on the same file over the internet in real time and you can chat about your progress simultaneously. They will be able to see what changes you are making as you make them all in real time. • PDF forms support 
Now you can fill out PDF forms directly on your iPad/iPhone. • Full Annotations/highlight support
 Now you can add notes directly from your iPad anywhere on the document. Highlighter, stamps, sticky notes, text boxes, underlines, strikeout, dynamic stamps (with date & time), freehand drawing, signature, free highlight, lines, arrows, rectangles and ovals, fully compatible with Apple Preview and Adobe Acrobat. • New EasyReview mode With this new amazing feature you are able to mark up PDF documents faster and easier than ever before. Just tap on the part of text where you need to make changes and correct it in the text editor (similar to Word). The text will be marked as removed and the new text will have a different color so you can easily identify it. When you save the PDF file all the modifications will appear as standard annotations (replace text and insert text annotations). • Fresh new user interface specially design to merge beautifully with iOS 12. • Create new PDF files Extract and email pages from a PDF file or create a new document using pages from an existing file. • Share & collaborate Connect with all your colleagues and friend to share and collaborate your PDF files and annotations in real time. • Rotate function You can rotate a single page or the whole document. • Vault folder Securely store your important PDF files. • Bookmarks/Outlines Bookmark pages on your PDF files. Add outlines to create or modify a table of contents for your document directly from your iPad. • Reflow mode • Full Web browser to download PDF files from the web • Scanner Create multipage documents in PDF format. • Document manager Copy, cut, paste and delete your documents. Organize your PDFs into folders. • PDF hyperlinks support Jump back and forth within the document. Jump back button to quickly go back to the page you came from. • Text search Easily find any word on your PDF file. • Save email attachments Open attachments directly from the Mail app, you can also open PDF files from any other application using the Open in function. • Download PDF files from Safari Use the Open in function to download a PDF file from Safari to PDF Reader Pro Edition. • Transfer files You can easily and securely copy your PDF files from your Mac or PC using Airdrop, the USB or WiFi sharing feature. • Print Print your PDF files and annotations directly from the app. • Email your files Email your PDF files directly from the app, you can email the entire document with all annotations or you can also email specific pages from a PDF file. You can also email a flatten copy of a PDF file, this option will compress and flatten your annotations onto the document to prevent them from being modified. • Cloud support Download/upload your PDF files to iCloud, Dropbox, Box, Google Drive, SugarSync & OneDrive. • Great for presentations Use Airplay or an HDMI cable to show your documents on an external display while you annotate them in real time. • The only mobile PDF Reader application that supports Vitrium* protected PDF files (Like University of Phoenix ebooks) Join the hundred of thousands users already enjoying all the great features of PDF Reader Pro Edition. More amazing features coming soon!

About

One Scan

Easily scan, convert, and sign documents from your device. Organize your business and personal files with features like auto-detection, flash, and folder management. Edit, e-sign, and share your scanned documents quickly and efficiently.

Highlights
  • Scan documents with auto-detection
  • Convert to PDF instantly
  • E-sign and paraph files
  • Organize with folders and search
  • Share via email and text
  • Import files from cloud storage
Features
Read full description

One Scan turns your iPhone and iPad into a powerful AI scanner. Point, tap, done: documents, receipts, ID cards, books and photos become crisp, searchable PDFs in one tap. Then sign, edit, organize and share them in seconds. Everything you expect from a top scanner app, without the clutter. No settings to fiddle with, no learning curve: One Scan does the hard work for you. SCAN ANYTHING IN ONE TAP - Automatic edge detection, perspective correction and shadow removal - Batch mode: capture dozens of pages in a row and get a single multi-page PDF - Smart filters: color, grayscale, black & white, whiteboard and auto-enhance - Dedicated modes for documents, ID cards (front and back on one page), passports, business cards, books, receipts and photos - Import from Photos, Files, Mail or any app with the Share Sheet - Built-in QR code and barcode reader AI THAT DOES THE BORING PART - OCR text recognition in 100+ languages: copy, search and export the text of any scan - AI summaries and instant answers: ask a question about a contract, an invoice or a report and get the answer - Smart naming and auto-sorting: One Scan reads your document, names it and files it for you - Data extraction: pull dates, totals and vendors from receipts and invoices, ready to export - One-tap translation of scanned text SIGN AND EDIT PDFS - Sign with your finger, Apple Pencil or a saved signature; add initials, dates and text fields - Fill out forms, annotate, highlight, draw, add stamps and watermarks - Reorder, rotate, delete, merge and split pages - Compress files, choose the page size (A4, Letter…) and the margins - Export as PDF, JPG, PNG, TXT or Word ORGANIZE AND FIND EVERYTHING - Folders, tags and favorites - Full-text search inside your scans, powered by OCR - iCloud sync keeps your library up to date on iPhone and iPad - Save to Files, iCloud Drive, Google Drive, Dropbox or OneDrive - Share by Mail, Messages, AirDrop or WhatsApp, or print with AirPrint PRIVATE BY DESIGN - Your scans are processed on your device and stay in your library. No account required - Lock the app and individual documents with Face ID, Touch ID or a passcode - Password-protect PDFs before you share them - No ads, and we never sell your data MADE FOR IPHONE AND IPAD - Full iPad experience: Split View, drag and drop, keyboard shortcuts and Apple Pencil - Home Screen widgets, Siri Shortcuts and a Files extension to scan from anywhere - Optimized for the latest iOS and iPadOS PERFECT FOR Students, teachers, freelancers, small businesses, travelers and remote workers. Anyone who needs to scan contracts, receipts, notes, whiteboards, IDs or old family photos. Terms of Use: https://mwm.ai/legal/scanner/terms-of-use Privacy Policy: https://mwm.ai/legal/scanner/privacy-policy

Screenshots

PDF Reader Pro Edition®4 screens
One Scan4 screens

Verdict

The call

The clearest difference is price: One Scan at Free against PDF Reader Pro Edition®'s $1.99. One Scan also leads on rating (4.7 vs 4.4) and ratings volume (12K vs 1.7K). PDF Reader Pro Edition®'s advantage is in-app purchases (none vs 10) and review sentiment (54% vs 26%). On update cadence, ads 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

One Scan is free to download; PDF Reader Pro Edition® costs $1.99 up front. One Scan sells 10 in-app purchases, starting at $3.99 per 7 days. PDF Reader Pro Edition® asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

One Scan holds the better App Store score, 4.7 against 4.4. That said, the two scores are not equally well evidenced: One Scan has 12K ratings behind it against 1.7K, so its average is the more settled of the two. Written reviews complicate that: 54% of PDF Reader Pro Edition®'s written reviews are positive against 26% of One Scan's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

PDF Reader Pro Edition® ships an update every 4 months, One Scan every 2 months. Both last shipped on September 24, 2026.

Scorecard8 real differences · 3 level
PDF Reader Pro Edition® versus One Scan: the parameters behind the verdict, then further details
ParameterPDF Reader Pro Edition®One Scan
Price$1.99Free — better
Rating4.4 (1.7K ratings)4.7 (12K ratings) — better
Positive reviews54.3% of reviews — better26.0% of reviews
Number of ratings1.7K12K — better
Update frequencyEvery 4 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFreemium — better
Best chart rank#126 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS10.0 — better26.0
Further details — not scored
Size66 MB40 MB
Age rating4+4+
DeveloperiTECH DEVELOPMENT SYSTEMS INC.App Rover

Customer experience

PDF Reader Pro Edition®

All ratings1,730 ratings
Positive84.9%
Neutral3.2%
Negative11.8%
Written reviews516 reviews
Positive54.3%
Neutral8.5%
Negative37.2%

One Scan

All ratings11,765 ratings
Positive91.2%
Neutral2.8%
Negative5.9%
Written reviews208 reviews
Positive26.0%
Neutral6.3%
Negative67.8%

User reviews

PDF Reader Pro Edition®

From 1.7K App Store ratings

What we love

  • 🚀 Fast and easy to use
  • 📁 Good file organization and management
  • ✍️ Useful annotation and highlighting tools
  • 🔒 Secure document storage

Room to improve

  • 🐛 Crashes and stability issues
  • 🔍 Poor search functionality
  • 📤 Difficulty sharing/exporting annotated files
  • 🤔 Unintuitive user interface

One Scan

From 12K App Store ratings

What we love

  • 🚀 Fast and easy to use
  • 📸 Excellent image quality
  • 💾 Convenient document storage

Room to improve

  • 🐛 Crashes and stability issues
  • 💰 Expensive subscription model
  • 🔒 Difficulty cancelling subscription

Bugs and requests

PDF Reader Pro Edition®

Reported bugs

4 issues
  • App crashes when opening certain PDF files
  • Annotations disappear or fail to save
  • Compatibility issues with newer iOS versions
  • Slow performance on older iPad models

Requested features

4 requests
  • Add support for password-protected PDFs
  • Improve annotation tools with better undo/redo
  • Implement cloud storage integration (Dropbox, iCloud, etc.)
  • Add ability to insert, delete, and rearrange PDF pages

One Scan

Reported bugs

3 issues
  • App freezes and becomes unresponsive
  • Scans not saving properly
  • Subscription charges continue even after cancellation

Requested features

3 requests
  • Free tier with limited scans
  • Ability to export scans to cloud storage
  • Better customer support and communication

In-app purchases

None

PDF Reader Pro Edition®

No in-app purchases

10 purchases

One Scan

Subscriptions10
  • Weekly Premium Pass7 Days trial$3.997 Days
  • Weekly Premium Pass7 Days trial$5.997 Days
  • Scanner Premium Pass7 Days trial$7.997 Days
Show 7 more
  • Monthly Premium Pass7 Days trial$9.991 Month
  • Monthly Premium Pass3 Days trial$9.991 Month
  • Annual Premium Pass$29.991 Year
  • Annually Premium Pass7 Days trial$49.991 Year
  • Yearly Premium Pass3 Days trial$49.991 Year
  • Yearly Premium Pass.$49.991 Year
  • Annually Premium Pass7 Days trial$59.991 Year

Questions

Is PDF Reader Pro Edition® free?
PDF Reader Pro Edition® costs $1.99, with no in-app purchases.
Is One Scan free?
One Scan is free to download, with in-app purchases available.
Which has better reviews, PDF Reader Pro Edition® or One Scan?
One Scan is rated higher. PDF Reader Pro Edition® averages 4.4 out of 5 from 1.7K ratings, while One Scan averages 4.7 from 12K ratings.
Do PDF Reader Pro Edition® or One Scan have ads?
Neither PDF Reader Pro Edition® nor One Scan shows ads.
Which is updated more often, PDF Reader Pro Edition® or One Scan?
PDF Reader Pro Edition® ships an update every 4 months, and One Scan every 2 months. Most recently, PDF Reader Pro Edition® was updated on September 24, 2026 and One Scan on September 24, 2026.

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