ezPDF Reader vs Smart PDF Scanner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ezPDF Reader
This app allows users to interact with PDF documents, including playing embedded multimedia like audio and video. It also offers robust annotation tools, form-filling capabilities, and text-to-speech functionality.
- Play embedded audio, video, and animations
- Text-to-Speech (TTS) with background playback
- Freehand drawing and text annotations
- Fillable PDF form completion and signing
- Scrap PDF pages and extract text/images
- Reflow view for text and images
- Customizable viewing options and navigation
Read full descriptionHide full description
ezPDF Reader is the world's first mobile PDF app with the embedded multimedia (audio & video) playing capability. Easy annotations and PDF form-filling are widely used features. This renewed app now supports both the iPhone and iPad devices. Now we have added new features of multimedia capability on PDF. Should you have any questions on creating this new type of PDF, pleases feel free to contact info@unidocs.com. For the business use of this advanced technology, content developments or interactive eBook productions, please contact us for our SDK library / API at info@unidocs.com ● Playing Audio, Video, and Animation from PDF Embedded multimedia files can be played - Play audio on text or marked areas - Play video inside a frame or a full-screen - Play GIF and APNG (Animated PNG file) ● Text-to-Speech (TTS) Let the text has its own voice. - TTS Feature is now included in the app. No need to pay this feature as an In-App Purchase - More languages are supported - Background mode playing is possible ● Annotation Features on PDF A useful tool to add text, write and draw on PDF. - Freestyle writing and drawing - Line, rectangle, and oval shapes - Add comments and insert images from the photo library or camera - Mark up texts with highlight, underline and cross-outs. - Change colors, opacity, and thickness - Erase one by one or page at a time - Flatten annotations - Import, export and share annotation list ● PDF Form Filler If the PDF file is designed with the PDF-form features, you can simply type in the form field and apply marks on buttons. Import and export data. Fill out your form, sign, flatten, and then send via email. ● Scrap The Scrap is a new feature for this version. Just select an area from the PDF page with the scrapping tool. The selected area will be created in PDF and image. Texts and images can be stripped from the PDF when available. You can easily share them as you wish. ● Reflow View Able to switch between PDF and Reflow View. Reflow view now supports images as well as text. Pinch zoom in to increase the text size and zoom out to make it smaller. ● Customized Viewing Tap top or bottom area to show a navigation bar and toolbars. Hide them by touching right below the navigation bar or right above the toolbars. - Text search and highlighted result - Thumbnail Pageview - Create bookmarks and list them - Support Table of Contents (Bookmarks in other PDF programs) - Annotation List - Attached File List - Scraped File List - Page read direction from left to right/from right to left - Sing Page View or Double Page View (with or without front cover) - Page scroll vertical/horizontal - Page turning effect - Duotone Mode with night reading mode - Embedded hyperlinks are live (Go To Page and URLs) ● PDF Documents - Open the standard password-protected PDF file - Attach files - Share PDF file - Print ● Functions for File Management We now support the Document Browser for the file management Convenient file management - Folder Creation / Copy / Cut / Paste / Move / Delete / Rename File list view and File cover for a recent view File search by Name Please share your thoughts in the review! Thank you. twitter.com/ezpdf facebook.com/ezpdf
Smart PDF Scanner
Transform your mobile device into a powerful scanner. Capture documents, receipts, and notes with high-quality scans. Organize your files with custom categories and easily share them as PDFs or images.
- High-quality document scanning
- Automatic edge detection and perspective correction
- Color-coded organization system
- Export as PDF or image
- Direct sharing via email, AirDrop, and cloud services
- FlashAssist for low-light scanning
Read full descriptionHide full description
Ditch the bulky office copier! Smart PDF Document Scanner turns your iPhone or iPad into a pro scanner app. Just snap a photo to scan pdf files that you can instantly send to your colleagues, clients, or keep for personal records. TACK SHARP SCANS That processor in your phone is quite a little monster. Smart PDF Scanner uses it fully to make the best possible scans. Even full-page articles come out tack-sharp and easy to read. It automatically detects the page edges and corrects for perspective. Pick full-color scans, grayscale, or black-and-white for maximum legibility. FlashAssist can take perfect scans even in poor lighting conditions. You can even change the correction and enhancement settings after the fact. POWERFUL COLOR-CODED ORGANIZATION Scanning is just half the problem. You need a good way to keep all your documents organized, and easy to find later. Smart PDF Scanner uses a simple tagging system that is much easier and more powerful than the regular folder system. File documents under custom color-coded categories with just a couple taps. Browse and sort files by category with a couple more. It's the way filing should work. EASY TO SHARE Export scans as PDFs or images, and email or print directly from the App. Files can also be shared via AirDrop, or sent to another App. Easily upload to Dropbox, Google Drive, and other cloud services with the corresponding third party App. Send PDFs and images to services such as Evernote or OneNote to take advantage of their OCR capabilities. FOR ALL YOUR SCANNING NEEDS + Quickly scan and send contracts and forms + Keep scans of important documents in your pocket, separate form the Photo Library + Scan all your travel receipts for easy expense reports + Keep digital copies of your notes and sketches + Scan articles and send them to iBooks to read on the go + And more! APPS BUILT FOR PROFESSIONALS Smart PDF Scanner uses the latest technologies packed into your iPhone and iPad, but we've worked hard to make it as easy and fast to use as possible. Intelligent image processing eliminates the need for fiddling with complicated controls. That way, you can focus on getting the job done, and doing what you do best. TIPS AND TRICKS Here are a few tips to get the best scans: + Place your document on a darker surface to improve the edge auto-detection. + You can drag the corners of the blue rectangle to fine tune it after taking a photo. + Make sure there is adequate lighting. Use the flash in low-light conditions. + You can tap on a page to edit its scan settings (including edges) after the fact. MADE BY DEVELOPERS WHO CARE We are dedicated to handcrafting the best possible Apps for your iPhone and iPad, and we hope you enjoy using Smart PDF Scanner. If you have any additional questions, please drop us a line via our feedback page. Best regards, -- The App Makers @ Qrayon.
Screenshots
Verdict
The clearest difference is review sentiment: Smart PDF Scanner at 86% against ezPDF Reader's 22%. Smart PDF Scanner also leads on rating (4.7 vs 2.0) and in-app purchases (none vs 4). ezPDF Reader's advantage is update cadence (every 3 weeks vs every 4 months) and price ($3.99 vs $4.99). On ads 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
ezPDF Reader costs $3.99 and Smart PDF Scanner $4.99 up front. ezPDF Reader sells 4 one-off in-app purchases. Smart PDF Scanner asks for nothing beyond the download.
Smart PDF Scanner holds the better App Store score, 4.7 against 2.0. That said, the two scores are not equally well evidenced: Smart PDF Scanner has 472 ratings behind it against 37, so its average is the more settled of the two. Written reviews point the same way: 22% of ezPDF Reader's written reviews are positive against 86% of Smart PDF Scanner's.
ezPDF Reader ships an update every 3 weeks, Smart PDF Scanner every 4 months. Both last shipped on October 12, 2026.
| Parameter | ezPDF Reader | Smart PDF Scanner |
|---|---|---|
| Price | $3.99 — better | $4.99 |
| Rating | 2.0 (37 ratings) | 4.7 (472 ratings) — better |
| Positive reviews | 21.8% of reviews | 86.5% of reviews — better |
| Number of ratings | 37 | 472 — better |
| Update frequency | Every 3 weeks — better | Every 4 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 42 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Unidocs Inc. | Qrayon, LLC |
Customer experience
ezPDF Reader
Smart PDF Scanner
User reviews
ezPDF Reader
From 37 App Store ratingsWhat we love
- 📄 Excellent PDF rendering and display quality
- 🔍 Powerful search functionality for text and symbols
- ✏️ Comprehensive annotation tools (highlight, underline, strikethrough)
- 📁 Intuitive file management and folder organization
- ☁️ Cloud integration with Google Drive and Dropbox
Room to improve
- 🐛 Frequent crashes and stability issues
- ⚠️ Major bugs introduced after updates
- 🔄 Loss of user data and annotations after updates
- ⏱️ Slow performance and lag
- 🔌 High battery drain
Smart PDF Scanner
From 472 App Store ratingsWhat we love
- 🚀 Easy to use
- 👍 User-friendly interface
- 🚀 Efficient scanning
- 💡 Versatile export options
- 🚀 Quick and convenient
Room to improve
- 🐛 Occasional crashes
- 🔍 Difficulty deleting/managing files
- 🔍 Limited customization options
- 🐛 Inconsistent border detection
Bugs and requests
ezPDF Reader
Reported bugs
15 issues- App crashes when using search function
- PDFs fail to open or respond to taps
- Loss of all stored documents and annotations after updates
- Highlighting and annotation features stop working
- Cloud integration (Dropbox, Google Drive) fails to authenticate
Show 10 moreShow fewer
- Text-to-speech functionality broken after iOS updates
- Page turning freezes after highlighting
- Search function becomes case-insensitive unexpectedly
- App crashes when zooming in/out after highlighting
- Embedded audio/video playback not functioning
- In-app purchase pages fail to load
- Menus and buttons not displaying on some devices
- App crashes when selecting bottom toolbar icons
- Slow page rendering and navigation
- Incompatibility with newer iOS versions causing crashes
Requested features
15 requests- Page cropping to remove white space
- Dark mode or customizable UI themes
- Ability to delete pages from PDFs
- Case-sensitive search functionality
- Improved highlight opacity and color options
Show 10 moreShow fewer
- Keyboard navigation support
- Ability to minimize search bar after searching
- Pencil-only annotation input mode
- Printing capability
- Support for more cloud storage services (Box.net)
- Tags and labels for document organization
- Multiple cloud account support
- Better text box selection and manipulation
- Improved TTS language support (French, etc.)
- Interactive form field support with JavaScript
Smart PDF Scanner
Reported bugs
2 issues- Crashes when saving or exporting files
- Inconsistent border detection on certain surfaces
Requested features
4 requests- Backup and restore functionality
- Batch processing and multi-select options
- OCR and text extraction capabilities
- Improved file management and organization
In-app purchases
ezPDF Reader
- HCILAB - English :Sarah$2.99
- HCILAB - Chinese :Xiaoling$2.99
- HCILAB - Japanese :Naomi$2.99
Show 1 moreShow fewer
- HCILAB - Korean :Yujin$2.99
Smart PDF Scanner
No in-app purchases
Questions
Is ezPDF Reader free?
Is Smart PDF Scanner free?
Which has better reviews, ezPDF Reader or Smart PDF Scanner?
Do ezPDF Reader or Smart PDF Scanner have ads?
Which is updated more often, ezPDF Reader or Smart PDF Scanner?
Other comparisons













