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.
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.
- 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
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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
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.
- 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
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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
Verdict
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
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.
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.
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.
| Parameter | PDF Reader | Fast Scan: PDF Scanner APP |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (3.5K ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 80.8% of reviews — better | 33.3% of reviews |
| Number of ratings | 3.5K — better | 3 |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 190 MB | 124 MB |
| Age rating | 4+ | 4+ |
| Developer | Kdan Mobile Software LTD | LINKIS LABS PTE. LTD. |
Customer experience
PDF Reader
Fast Scan: PDF Scanner APP
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
PDF Reader
- KDAN Cloud$2.991 Month
- Deluxe Business Pack$5.991 Month
- Creativity 3653 Days trial$9.991 Month
Show 6 moreShow fewer
- 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
- Upgrade to Premium$2.99
Fast Scan: PDF Scanner APP
- 扫描周会员$2.997 Days
- 扫描季会员$9.993 Months
- 扫描年会员$19.991 Year
- 50 T-cards$2.99
- 10 T-cards$3.99
- 30 T-cards$12.99
Show 4 moreShow fewer
- 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?
Is Fast Scan: PDF Scanner APP free?
Which has better reviews, PDF Reader or Fast Scan: PDF Scanner APP?
Do PDF Reader or Fast Scan: PDF Scanner APP have ads?
Which is updated more often, PDF Reader or Fast Scan: PDF Scanner APP?
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