Comparison

pdfFiller vs Word pad + Docx, PDF, AI Write

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

Head to head
About

pdfFiller

This app transforms your device into a mobile office for managing PDF documents. Edit, eSign, and fill out forms, then share or export them. It offers secure storage and access to millions of templates, with offline capabilities.

Highlights
  • Edit PDF documents
  • Esign and fill out forms
  • Share and collaborate on documents
  • Securely store unlimited documents
  • Access millions of fillable templates
  • Work offline
Features
Currently charting
Read full description

pdfFiller is a powerful mobile app that transforms your iOS device into a fully equipped office. With an extensive set of features, you can edit, eSign, and manage an unlimited number of PDF documents from anywhere. Try pdfFiller to see how it can revolutionize the way you work. “pdfFiller does more than just bring a few new editing tricks to PDFs. Actually, this PDF app can add extra depth to the way we interact with these popular files.” — CultOfMac.com “The app is easy to use, lets you organize files into folders, and connects to Dropbox, Google Drive, Box, and OneDrive.” — MakeUseOf.com EDIT PDF DOCUMENTS • Easily edit any PDF contract, invoice, or tax form on your mobile device • Highlight content, erase, or blackout sensitive information in the documents • Use various annotation tools to add text, images, dates, check marks, and more ESIGN AND FILL OUT FILLABLE FORMS • Quickly eSign contracts, agreements, and deals with just a few taps • Send an unlimited number of documents for signing • Create your signature or initials by drawing them on your device’s screen SHARE AND EXPORT • Invite others to collaborate by sharing documents by email, link, or text message • Set permissions for the recipients allowing them to view, edit, or sign the document • Print, fax, and save documents as Word, Excel, and PowerPoint files STORE AN UNLIMITED NUMBER OF DOCUMENTS • Protect your documents with the same level of security and encryption used in the banking industry • Keep your documents up-to-date on all your devices and access them from a smartphone, laptop, or tablet • Start working on a document on one device and pick it up on another one using your pdfFiller account FIND FILLABLE TEMPLATES • Search among millions of ready-to-fill templates in our PDF Library • Add templates to your account and use them as many times as you need • Create professional-looking documents using high-quality business and legal templates OFFLINE MODE • Turn on offline mode to work on documents without interruptions • View, edit, and eSign documents even without an internet connection • Sync the changes you made when you’re back online 7-DAY FREE TRIAL • Try out all paid features free for 7 days • Select a plan that best suits your needs • Cancel anytime without any obligations Subscription will be charged to your credit card through your App Store account. Your subscription will automatically renew unless canceled at least 24 hours before the end of the current period. Manage your subscription in the Account Settings on the App Store after purchase. Terms of use: https://www.pdffiller.com/en/terms_of_services.htm Privacy policy: https://www.pdffiller.com/mobile/privacy_policy.html We appreciate your feedback, so please email us at support@pdffiller.com

About

Word pad + Docx, PDF, AI Write

This app is a versatile writing and document management tool. It offers a powerful word processor, PDF editing and annotation features, and AI writing assistance. Organize, create, and share various document types for personal and professional use.

Highlights
  • Advanced word processing with rich text formatting
  • PDF annotation, highlighting, and signing
  • AI writing assistance
  • Offline writing capabilities
  • Cloud service integration
  • Document organization with folders
  • File conversion to multiple formats
Features
Read full description

Wordpad+ is a Microsoft Word-compatible DOCX and PDF editor that helps you write, edit, read, highlight, and manage documents for school, college, work, and everyday life. Whether you're taking last-minute lecture notes, writing a story, preparing meeting minutes, working on an important essay, or organizing your thoughts, you can do it all in Wordpad+. Whether you're a student, educator, writer, medical professional, journalist, scholar, or business professional, you can use Wordpad+ every day to create and edit notes, annotations, memos, signed PDFs, papers, highlighted PDF textbooks, and more. Powerful document editor - Create and edit Microsoft Word-compatible DOCX documents. - Edit Microsoft RTF, plain-text, and Markdown files. - Format your text with tables, lists, fonts, styles, and colors. - Use templates to create professional resumes, reports, and other documents. - Save your work automatically and access it across multiple devices. PDF editing and annotation - Highlight, sketch, add text boxes and pictures, and sign PDF documents. - Write and sketch with seven ink tools: Marker, Pen, Pencil, Monoline, Fountain Pen, Watercolor, and Crayon. - Fill out PDF forms. - Sign documents directly on your device. - Verify digital signatures to confirm their authenticity. Write and format your way - Keep writing wherever you are, including when you're offline or don't have your laptop. - Customize margins, headers, and other layout options. - Track statistics such as word and sentence counts. - Proofread your work with text-to-speech. - Dictate text for hands-free writing. - Use Focus Mode to reduce distractions. - Type in more than 30 languages. Multiformat reader - Read ePub and PDF files, view PowerPoint and Excel documents, play MP3 audio, and open many other formats. - Import and export files through iCloud Drive, Google Drive, Dropbox, and other cloud services. - Choose from dark, light, and sepia reading themes, adjust the font size, and use text-to-speech with ePub and PDF files. - Work with large documents, including fillable forms, using the PDF engine. - Annotate and highlight eBooks, or add text and images to them. Organize and multitask - Keep several documents open in the multitabbed interface and switch between them quickly. - View documents side by side with multiple windows and multitasking. - Keep all your notes, ideas, and projects in one place with unlimited space. - Create folders and subfolders that suit the way you work. - Customize notebook covers. - Find your files quickly with search. - Manage DOCX, RTF, PDF, TXT, Markdown, ePub, PowerPoint, Excel, Apple iWork, MP3, MP4, PNG, JPG, GIF, TIFF, ZIP, and other file formats. Share and export - Open email attachments directly in Wordpad+. - Sync your files with iCloud, Dropbox, and other services. - Convert your work to PDF, ePub, HTML, and other formats. - Compress folders into ZIP files and send them by email. Scan and convert to PDF - Scan notes, books, tickets, recipes, and other items directly to PDF. - Convert documents, images, photos, scans, and other files to PDF on your device. - Open PowerPoint, Word, and Excel files, convert them to PDF, and annotate them. Back up and protect your work - Protect your content with a passcode. - Lock individual folders or projects for added security. - Keep your data safe with automatic backups. Use Wordpad+ to organize your thoughts, lectures, books, sketches, notes, documents, and projects in one place. Download it for free and start writing, editing, reading, and organizing your work. Privacy Policy http://www.noteswriter.com/Kairoos_Privacy_Policy.html EULA https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

pdfFiller4 screens
Word pad + Docx, PDF, AI Write4 screens

Verdict

The call

The clearest difference is ratings volume: pdfFiller at 8.5K against Word pad + Docx, PDF, AI Write's 27. pdfFiller also leads on review sentiment (20% vs 0%) and chart position (#61 vs unranked). Word pad + Docx, PDF, AI Write's advantage is update cadence (every 5 days vs fortnightly). On price, rating, 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. pdfFiller sells 10 in-app purchases, starting at $19.99 per month and Word pad + Docx, PDF, AI Write sells 1 in-app purchase, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.4 for pdfFiller against 4.3 for Word pad + Docx, PDF, AI Write. That said, the two scores are not equally well evidenced: pdfFiller has 8.5K ratings behind it against 27, so its average is the more settled of the two. Written reviews are what separate them: 20% of pdfFiller's written reviews are positive against 0% of Word pad + Docx, PDF, AI Write's.

UpkeepUpdate frequency

pdfFiller ships an update fortnightly, Word pad + Docx, PDF, AI Write every 5 days. The most recent releases landed on September 24, 2026 and September 16, 2026 respectively.

Scorecard6 real differences · 5 level
pdfFiller versus Word pad + Docx, PDF, AI Write: the parameters behind the verdict, then further details
ParameterpdfFillerWord pad + Docx, PDF, AI Write
PriceFreeFree
Rating4.4 (8.5K ratings) — better4.3 (27 ratings)
Positive reviews19.9% of reviews — better0.0% of reviews
Number of ratings8.5K — better27
Update frequencyFortnightlyEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
Best chart rank#61 — better—
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad
Requires iOS15.0 — better26.0
Further details — not scored
Size178 MB500 MB
Age rating4+4+
DeveloperairSlate, Inc.Kairoos Solutions SL

Customer experience

pdfFiller

All ratings8,461 ratings
Positive85.6%
Neutral2.6%
Negative11.9%
Written reviews582 reviews
Positive19.9%
Neutral2.1%
Negative78.0%

Word pad + Docx, PDF, AI Write

All ratings27 ratings
Positive81.5%
Neutral7.4%
Negative11.1%
Written reviews4 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

pdfFiller

Reported bugs

4 issues
  • Text/annotations not saving correctly
  • Freezing/crashing issues
  • Incompatibility with certain devices
  • Login/account issues

Requested features

5 requests
  • Undo/redo functionality
  • Ability to control opacity of annotations
  • Better file management options
  • Improved mobile experience
  • Clearer pricing and subscription details

Word pad + Docx, PDF, AI Write

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

pdfFiller

Subscriptions10
  • PDF editor • Basic Monthly$19.991 Month
  • PDF editor • Basic Monthly7 Days trial$19.991 Month
  • PDF editor • Plus Monthly$29.991 Month
Show 7 more
  • PDF editor • Plus Monthly7 Days trial$29.991 Month
  • PDF editor • Premium Monthly7 Days trial$39.991 Month
  • Premium Monthly$39.991 Month
  • PDF editor • Basic Annual7 Days trial$95.991 Year
  • PDF editor • Basic Annual$95.991 Year
  • PDF editor • Plus Annual7 Days trial$119.991 Year
  • PDF editor • Premium Annual7 Days trial$179.991 Year
1 purchases

Word pad + Docx, PDF, AI Write

Subscriptions1
  • Wordpad+ Full Pro Unlock & AI3 Days trial$4.991 Month

Questions

Is pdfFiller free?
pdfFiller is free to download, with in-app purchases available.
Is Word pad + Docx, PDF, AI Write free?
Word pad + Docx, PDF, AI Write is free to download, with in-app purchases available.
Which has better reviews, pdfFiller or Word pad + Docx, PDF, AI Write?
pdfFiller is rated higher. pdfFiller averages 4.4 out of 5 from 8.5K ratings, while Word pad + Docx, PDF, AI Write averages 4.3 from 27 ratings.
Do pdfFiller or Word pad + Docx, PDF, AI Write have ads?
Neither pdfFiller nor Word pad + Docx, PDF, AI Write shows ads.
Which is updated more often, pdfFiller or Word pad + Docx, PDF, AI Write?
pdfFiller ships an update fortnightly, and Word pad + Docx, PDF, AI Write every 5 days. Most recently, pdfFiller was updated on September 24, 2026 and Word pad + Docx, PDF, AI Write on September 16, 2026.

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