Comparison

PDF Reader vs Fast Scan: PDF Scanner APP

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

Head to head
About

PDF Reader

Edit, convert, and manage PDF documents on your mobile device. This app allows you to directly edit text, scan documents, fill out forms, and secure your files with passwords and watermarks. It also supports OCR to extract text from scans and convert PDFs to various formats.

Highlights
  • Edit PDF text directly
  • Convert PDF to Word, Excel, PPT, images
  • OCR for text extraction from scans
  • Fill and sign PDF forms
  • Secure PDFs with passwords and watermarks
  • Annotate PDFs with highlights and notes
  • Merge and split PDF files
Features
Read full description

KDAN PDF, formerly KDAN PDF Reader, is a mobile PDF editor and reader for iPhone, iPad, and Mac. Edit text directly on your device. Then scan, organize, convert, sign, and share your PDFs in one simple and powerful app. Trusted by millions, KDAN PDF connects your workflow across iPhone, iPad, and Mac, making it easy to review, annotate, and finalize documents anywhere. Who Recommends Us? - Featured as “10 Essentials” in Utility on iTunes - Featured in “10 Best PDF Reader Apps For iPhone & iPad 2019” by FOSSBYTES - Featured as “Best Utility App” in App Store Rewind KEY FEATURES PDF EDITOR • Edit and correct any typos directly on PDFs • Merge multiple files into one PDF • Split a large PDF into several small PDFs • Rotate, delete, add, and rearrange pages • Extract pages or images from PDFs • Change PDF background color PDF CONVERTER • Online & Offline PDF converter • Convert PDF to Word, Excel, PPT & image conversions (docx, xlsx, pptx, jpg, png, gif & bmp). • Save webpages and images as PDFs OCR (Optical Character Recognition) • Recognize and extract text from scans • Export OCR results as text or searchable PDFs • Support 50+ languages SIGN, FORM FILLING, SHARE • Fill out & edit PDF forms • Sign on PDFs • Customize and manage signatures SHARE FILES • Get files from KDAN Cloud, iCloud Drive, Dropbox, OneDrive, Google Drive, Evernote, FTP, or WebDAV client • Compress PDFs • Share flatten PDFs • Send faxes directly from within the app PDF SECURITY • Add passwords to lock PDFs • Remove passwords & restrictions from PDFs • Add & remove PDF watermarks • Validate certificates & signatures in PDF documents VIEW FILES • Supports all mainstream file formats, including Vitrium* PDF format (Like University of Phoenix Ebooks) • Text Reflow & Auto Flow • Present a PDF as a slideshow • View multiple PDFs as tabs • Dark mode supported (only for iOS13 & macOS Mojave and later) • Convert text to spoken audio (text-to-speech) ANNOTATE & REVIEW PDF • Annotate PDFs with highlights, underlines, strikeout text, shapes, sticky notes & text boxes • Add pre-designed stamps, including Approved, Sign Here, Confidential, and more • Add custom stamps with time and date information • Insert hyperlinks to external websites, target pages, and email address • Attach audio notes & insert images to PDFs • Turn handwriting into text with Scribble (Available for iPad) • Add handwritten notes to PDFs MANAGE ANNOTATIONS • Save annotations in XFDF format • Remove all annotations in one tap - Recommended by Techradar, Techworm & Softsonic UPGRADE OPTIONS DOCUMENT 365 • Try for $0.00 for 7 days • Access KDAN PDF on Mac, iPhone, iPad, and other platforms. • Annual plan: billed at USD 59.99/year after the 7-day free trial ends • Quarterly plan: billed at USD 19.99/quarter after 3-day free trial ends • Monthly plan: billed at USD 9.99/month after 3-day free trial ends Subscriptions will be charged to your Apple account upon purchase and will auto-renew 24 hours before the current period ends at the same price and duration. Cancellation during the active period is not allowed. Manage your trial and subscription in your Apple account. Terms of service: https://pdf-reader.kdandoc.com/terms-of-service Privacy Policy: https://pdf-reader.kdandoc.com/privacy-policy Got a question? Contact us at helpdesk@kdanmobile.com or check out https://support.kdanmobile.com

About

Fast Scan: PDF Scanner APP

This app offers intelligent document scanning, converting images to editable tables, extracting text, and translating photos. It allows for unlimited multi-page scans in various formats and converts PDFs to Word, Excel, and PPT with one click for efficient document management and sharing.

Highlights
  • Unlimited multi-page document scanning
  • Image to Excel table conversion
  • Text extraction and recognition (OCR)
  • Photo translation
  • PDF content editing and electronic signature
  • Business card and receipt recognition
  • PDF to Word, Excel, PPT conversion
Features
Read full description

Fast Scan is an intelligent scanning software that integrates multiple functions such as document scanning, document scanning, image conversion to Excel tables, image text extraction and recognition, photo translation, PDF content editing, electronic signature, business card receipt recognition, etc. Unlimited high-definition multi-page scanned files support multiple formats such as pictures, PDF, etc. to save, export and share. It can also convert scanned PDF files to Word, Excel, PPT and other document formats with one click, making document processing more convenient and efficient. ----------Feature Highlights---------- 【Unlimited document multi-page scanning】 The mobile phone accurately recognizes and scans, automatically frames the boundaries, and obtains high-definition scans intelligently and efficiently. [Document Scanning and Recognition] Scan various documents such as ID cards, driver's licenses, and household registers with one click, quickly identify information, and easily obtain electronic ID photos. Say goodbye to carrying heavy documents with you and make your life more convenient and easier. [File library that you can carry with you] Take photos to identify text, take photos to instantly translate, handwrite signatures, and document watermarks, making it convenient, orderly, efficient and safe. 【PDF format conversion】 Convert PDF to Word, Excel, PPT, and pictures with one click, maintain the original layout, restore the layout, and quickly share and export efficiently. [Document sharing, efficient collaboration] Any document you scan can be shared with friends via email, link, or social accounts such as Weibo and WeChat. ----------scenes to be used---------- ●Students: Scan class notes, teaching materials, assignments and reports, etc. to facilitate the organization and management of learning materials and improve learning efficiency. ●Workers: Scan documents, contracts, meeting minutes, share, export and save important documents with one click, making working quickly and efficiently. ●Construction: high-definition scan of drawings, backup and retention of manuscripts. ●Finance: contracts, invoices, financial information, etc., to facilitate the recording and management of financial information and improve work efficiency. ●Travellers: Scan travel documents such as passports, documents, air tickets, hotel reservation information, etc. for easy reference and sharing. ... Fast Sacn is suitable for people from all walks of life. It can help users scan, identify and manage various files quickly and conveniently, improve work and study efficiency, and realize digital file management. Come and click to download and try it~ [Subscription Description] With regard to the membership services provided in the app, we provide -Weekly membership $2.99 -Quarterly member $9.99 -Permanent member $16.99 Privacy Policy: https://static.linkisai.com/html/privacy/10163097907427110060_en.html?appName=Fast Scan Payment agreement: https://static.linkisai.com/html/paymentagreement/general_en.html

Screenshots

PDF Reader4 screens
Fast Scan: PDF Scanner APP4 screens

Verdict

The call

The clearest difference is review sentiment: PDF Reader at 81% against Fast Scan: PDF Scanner APP's 33%. PDF Reader also leads on ratings volume (3.5K vs 3). Fast Scan: PDF Scanner APP's advantage is rating (5.0 vs 4.5) and iOS requirement (11.0 vs 13.0). On price, update cadence, 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 Reader sells 10 in-app purchases, starting at $2.99 per month and Fast Scan: PDF Scanner APP sells 10 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Fast Scan: PDF Scanner APP holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: PDF Reader has 3.5K ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 81% of PDF Reader's written reviews are positive against 33% of Fast Scan: PDF Scanner APP's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

PDF Reader ships an update every 2 months, Fast Scan: PDF Scanner APP every 3 months. The most recent releases landed on October 20, 2026 and October 19, 2026 respectively.

Scorecard4 real differences · 6 level
PDF Reader versus Fast Scan: PDF Scanner APP: the parameters behind the verdict, then further details
ParameterPDF ReaderFast Scan: PDF Scanner APP
PriceFreeFree
Rating4.5 (3.5K ratings)5.0 (3 ratings) — better
Positive reviews80.8% of reviews — better33.3% of reviews
Number of ratings3.5K — better3
Update frequencyEvery 2 months — betterEvery 3 months
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.011.0 — better
Further details — not scored
Size190 MB124 MB
Age rating4+4+
DeveloperKdan Mobile Software LTDLINKIS LABS PTE. LTD.

Customer experience

PDF Reader

All ratings3,542 ratings
Positive89.2%
Neutral2.7%
Negative8.2%
Written reviews2,196 reviews
Positive80.8%
Neutral4.8%
Negative14.4%

Fast Scan: PDF Scanner APP

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

Bugs and requests

PDF Reader

Reported bugs

3 issues
  • Unable to open or access saved files
  • Syncing and backup issues
  • Compatibility problems with newer iOS versions

Requested features

4 requests
  • Improved file management and organization
  • Better integration with cloud storage services
  • More customization options
  • Enhanced accessibility features

Fast Scan: PDF Scanner APP

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

PDF Reader

Subscriptions9
  • KDAN Cloud$2.991 Month
  • Deluxe Business Pack$5.991 Month
  • Creativity 3653 Days trial$9.991 Month
Show 6 more
  • Document 365 (Month)3 Days trial$9.991 Month
  • Deluxe PDF Pack for iPhone$12.993 Months
  • Creativity 365 - 3 Months3 Days trial$19.993 Months
  • Document 365 (Quarter)3 Days trial$19.993 Months
  • Deluxe PDF Pack for iPhone$39.991 Year
  • Document 3657 Days trial$59.991 Year
One-time1
  • Upgrade to Premium$2.99
10 purchases

Fast Scan: PDF Scanner APP

Subscriptions3
  • 扫描周会员$2.997 Days
  • 扫描季会员$9.993 Months
  • 扫描年会员$19.991 Year
One-time7
  • 50 T-cards$2.99
  • 10 T-cards$3.99
  • 30 T-cards$12.99
Show 4 more
  • 扫描永久会员$19.99
  • 50 T-cards$19.99
  • 100 T-cards$39.99
  • Permanent VIP$59.99

Questions

Is PDF Reader free?
PDF Reader is free to download, with in-app purchases available.
Is Fast Scan: PDF Scanner APP free?
Fast Scan: PDF Scanner APP is free to download, with in-app purchases available.
Which has better reviews, PDF Reader or Fast Scan: PDF Scanner APP?
Fast Scan: PDF Scanner APP is rated higher. PDF Reader averages 4.5 out of 5 from 3.5K ratings, while Fast Scan: PDF Scanner APP averages 5.0 from 3 ratings.
Do PDF Reader or Fast Scan: PDF Scanner APP have ads?
Neither PDF Reader nor Fast Scan: PDF Scanner APP shows ads.
Which is updated more often, PDF Reader or Fast Scan: PDF Scanner APP?
PDF Reader ships an update every 2 months, and Fast Scan: PDF Scanner APP every 3 months. Most recently, PDF Reader was updated on October 20, 2026 and Fast Scan: PDF Scanner APP on October 19, 2026.

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