pdfFiller vs Smart PDF Editor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Edit PDF documents
- Esign and fill out forms
- Share and collaborate on documents
- Securely store unlimited documents
- Access millions of fillable templates
- Work offline
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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
Smart PDF Editor
This app is a PDF editor designed for efficient ink annotations, especially with a stylus. It helps professionals sign and share documents, and students take notes on study materials. Organize your files with a built-in manager.
- Ink annotation optimized
- Digital signature tool
- Document review and sharing
- Note-taking on documents
- Built-in file manager
- Color-coded categories
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Smart PDF is a PDF editor specially optimized for ink annotations. Use it with an Apple Pencil for the ultimate ease in note taking. Great for professionals Quickly sign and send documents. Review, annotate and share files with your colleagues. Great for students If you spend a lot of time reading and studying documents on your iPad, then Smart PDF is an indispensable tool for getting the most out of your study time. Take notes on documents in class, or while studying at home. Keep all your files organized with the built-in file manager, with color-coded categories. We hope you enjoy Smart PDF! -- The App Makers @ Qrayon
Screenshots
Verdict
The clearest difference is rating: pdfFiller at 4.4 against Smart PDF Editor's 3.8. pdfFiller also leads on ads (none vs shown) and update cadence (fortnightly vs every 7 months). Smart PDF Editor's advantage is in-app purchases (none vs 12). On price, review sentiment, device support and iOS requirement 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. pdfFiller sells 10 in-app purchases, starting at $19.99 per month. Smart PDF Editor asks for nothing beyond the download.
pdfFiller holds the better App Store score, 4.4 against 3.8. That said, the two scores are not equally well evidenced: pdfFiller has 8.5K ratings behind it against 109, so its average is the more settled of the two. Written reviews split almost evenly too, at 20% and 21% positive.
pdfFiller ships an update fortnightly, Smart PDF Editor every 7 months. The most recent releases landed on September 25, 2026 and September 15, 2026 respectively.
| Parameter | pdfFiller | Smart PDF Editor |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (8.5K ratings) — better | 3.8 (109 ratings) |
| Positive reviews | 20.0% of reviews | 20.9% of reviews — better |
| Number of ratings | 8.5K — better | 109 |
| Update frequency | Fortnightly — better | Every 7 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Best chart rank | #56 — better | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 178 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | airSlate, Inc. | Qrayon, LLC |
Customer experience
pdfFiller
Smart PDF Editor
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
Smart PDF Editor
Not enough reviews yet to summarise bugs or requests.
In-app purchases
pdfFiller
- PDF editor • Basic Monthly$19.991 Month
- PDF editor • Basic Monthly7 Days trial$19.991 Month
- PDF editor • Plus Monthly$29.991 Month
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- 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
Smart PDF Editor
No in-app purchases





