PDF Reader vs Fill and Sign
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
Fill and Sign
Easily fill out and digitally sign any PDF document on your mobile device. Scan or import documents, use smart autofill for quick data entry, and add your signature to complete forms in seconds. Share finished files securely.
- Fill and sign PDF documents
- Scan and import documents
- Smart AI autofill suggestions
- Digital signature creation
- Secure data encryption
- Offline functionality
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FILL & SIGN FORMS IN SECONDS Fillrr makes it simple to complete and eSign documents on your iPhone or iPad. Import or scan any PDF, edit and autofill forms instantly. Add your digital signature, and share the finished file in just moments. THE COMPLETE PDF FORM FILLER & SIGNATURE APP Stop wasting time with tiny keyboards or clunky apps. With Fillrr’s smart AI autofill, you can quickly: • Fill out contracts and agreements • Sign tax forms and legal documents • Complete applications and registration forms • eSign any PDF or scanned document HOW IT WORKS 1. Import a document: scan, share from your computer, or open an email attachment 2. Tap a field and edit your document — Fillrr adjusts fonts, checkboxes, and signature for you 3. Share or save your completed form instantly FAST, SIMPLE, AND SECURE • Autofill suggestions save you time • Digital signature maker allows you to eSign your form fast • Works offline with local data storage • Military-grade 256-bit AES encryption keeps your information safe WHY USERS CHOOSE FILLRR • Fast, accurate PDF editor and signer • Simple design that makes paperwork easy • Works with all types of documents • Always improving — let us know if a form doesn’t fill, and we’ll update Fillrr Edit, fill, sign, and send documents with Fillrr — the fast and simple PDF filler and signer. Privacy Policy: https://www.fillrr.com/privacy-policy Terms of Use: https://www.fillrr.com/terms-and-conditions
Screenshots
Verdict
The clearest difference is ads: PDF Reader at none against Fill and Sign's shown. PDF Reader also leads on ratings volume (3.5K vs 97) and review sentiment (81% vs 69%). Fill and Sign's advantage is rating (4.7 vs 4.5) and update cadence (monthly vs every 2 months). 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
Both are free to download. PDF Reader sells 10 in-app purchases, starting at $2.99 per month and Fill and Sign sells 5 in-app purchases, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Fill and Sign holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: PDF Reader has 3.5K ratings behind it against 97, so its average is the more settled of the two. Written reviews complicate that: 81% of PDF Reader's written reviews are positive against 69% of Fill and Sign'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, Fill and Sign monthly. The most recent releases landed on September 24, 2026 and September 18, 2026 respectively.
| Parameter | PDF Reader | Fill and Sign |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (3.5K ratings) | 4.7 (97 ratings) — better |
| Positive reviews | 80.9% of reviews — better | 68.8% of reviews |
| Number of ratings | 3.5K — better | 97 |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 190 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Kdan Mobile Software LTD | Fillrr LLC |
Customer experience
PDF Reader
Fill and Sign
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
Fill and Sign
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
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- 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
Fill and Sign
- Weekly renewable subscription$9.997 Days
- Monthly renewable subscription3 Days trial$9.991 Month
- Secret offer1 Year trial$39.991 Year
Show 2 moreShow fewer
- One Time Offer1 Year trial$39.991 Year
- Annually subscription3 Days trial$39.991 Year
Questions
Is PDF Reader free?
Is Fill and Sign free?
Which has better reviews, PDF Reader or Fill and Sign?
Do PDF Reader or Fill and Sign have ads?
Which is updated more often, PDF Reader or Fill and Sign?
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