Power PDF vs Portable USB · Cloud Ready
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Power PDF
Create, modify, and secure PDF documents on your mobile device. Convert various file types and photos to PDF, scan documents with your camera, and manage files with a built-in file manager. View, annotate, and search within PDF documents with ease.
- Create PDFs from DOC, XLS, PPT, TXT, and photos
- Scan to PDF using camera
- Combine, split, delete, and reorder PDF pages
- Add password protection to PDFs
- View, search, and annotate PDFs
- File management: rename, delete, move, create folders
- Import files from Camera Roll, Email, and other apps
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Power PDF is a powerful tool to create, secure and view PDF documents on iPad/iPhone. Power PDF lets you create PDF documents on your iPhone/iPad with ease. It supports: - Create PDF documents from many file types, including: DOC, XLS, PPT, TXT, RTF, XML, HTML and all text files. - Convert photos to a PDF document. - Scan to a PDF document using your Camera. Power PDF lets you modify PDF documents on your iPhone/iPad with ease. It supports: - Combine PDF documents. - Split a PDF document into two or more documents. - Delete pages in a PDF document. - Re-arrange pages in a PDF document. - Add password protection to a PDF document. Power PDF lets you view PDF documents with ease. It supports: - View PDF documents in thumbnail or full screen modes. - Extract text from a PDF document. - Add bookmarks on a PDF document. - Search within a PDF document. - Fast Navigate within a PDF document. - Zooms in/Zooms out on a PDF document. - Annotate in a PDF document. Power PDF also has a File Manager, which supports the following features: - Import files from your Camera Roll, Email or another App through “Open In”. - Manage Files including: rename, delete, move, create folder and sort. - Search file name in Local Files and Camera Roll. - Open many document types, including: DOC, EXCEL, PPT, TXT, image files, and audio files. With its simple interfaces, Power PDF provides the easiest way to manage PDF documents on iPhone and iPad. If you have more questions, please visit: http://www.comcsoft.com/Portfolio/our_apps/PowerPDF/PowerPDF_overview.php.
Portable USB · Cloud Ready
Transform your iPhone into a portable storage device. Easily manage local and cloud files, transfer them wirelessly or via USB, and share them securely. Supports a wide range of file formats for seamless viewing and organization.
- Cloud integration (GoogleDrive, Dropbox, OneDrive, iCloud)
- Wi-Fi and USB file transfer
- Secure multi-layer encryption
- Comprehensive file management (search, organize, compress)
- Full format support for viewing (PDF, Office, media)
- Easy file sharing
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"Portable USB" — Turn your iPhone into a portable storage hub to easily manage local and cloud files! No complicated operations needed—efficiently organize, view all types of files, and quickly share them with others. The interface is simple and easy to use, while packing powerful and practical features: ◆ Seamless Multi-Platform Cloud Integration Supports GoogleDrive, DropBox, OneDrive, and iCloud for one-step file synchronization; ◆ Flexible Transfer & Easy Sharing ・Wi-Fi Transfer: Wirelessly move files between your phone and computer with ease. ・USB Cable Sharing: For the fastest speed, use iTunes on Windows or Finder on macOS. ・Share files bidirectionally with other apps, or via email attachments. ◆ Multi-Layer Encryption for Your Privacy Keep your data safe with a secure 4-digit passcode, complex password, pattern lock, or Touch ID; ◆ All-in-One File Management Global search, folder categorization, rename/move/compress/decompress (ZIP), and multi-dimensional sorting; ◆ Full Format Support for Smooth Viewing ・PDFs (thumbnails, bookmarks, printing) ・Images (swipe to browse, zoom) ・Documents (Word, Excel, PPT, iWork, html) ・Audio & Video (mp4, mp3 and other mainstream formats) We also provide handy usage tips and professional technical support to make file management simpler for you! Have questions? Contact us: awfsksk@gmail.com
Screenshots
Verdict
The clearest difference is rating: Power PDF at 4.8 against Portable USB · Cloud Ready's 4.2. Power PDF also leads on ratings volume (1K vs 59). Portable USB · Cloud Ready's advantage is review sentiment (81% vs 65%) and iOS requirement (13.0 vs 16.6). 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. Power PDF sells 1 one-off in-app purchase and Portable USB · Cloud Ready sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Power PDF holds the better App Store score, 4.8 against 4.2. That said, the two scores are not equally well evidenced: Power PDF has 1K ratings behind it against 59, so its average is the more settled of the two. Written reviews complicate that: 65% of Power PDF's written reviews are positive against 81% of Portable USB · Cloud Ready's, so the app with the better star average is not the one people write more warmly about.
Both ship on a similar rhythm, roughly every 3 months. Both last shipped on September 21, 2026.
| Parameter | Power PDF | Portable USB · Cloud Ready |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (1K ratings) — better | 4.2 (59 ratings) |
| Positive reviews | 65.0% of reviews | 81.1% of reviews — better |
| Number of ratings | 1K — better | 59 |
| Update frequency | Every 3 months | Every 3 months |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 75 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | ComcSoft Corporation | 炜 桂 |
Customer experience
Power PDF
Portable USB · Cloud Ready
User reviews
Power PDF
From 1K App Store ratingsWhat we love
- 👍 Easy to use
- 🚀 Handles all types of documents easily
- 💡 Powerful features in free version
- 👍 Quick and easy to convert photos to PDF
- 🚀 Works well for splitting and merging PDFs
Room to improve
- 🐛 Full of annoying pop-ups and ads
- 🔒 Requires paid upgrade to access certain features
- 🐛 Buggy, crashes frequently
- 🐛 Can't open or download files in free version
- 🐛 Can't rearrange pages in PDF without paid upgrade
Portable USB · Cloud Ready
From 59 App Store ratingsWhat we love
- 👍 Easy to use
- 👍 Great for file management
- 👍 Supports multiple clouds
- 👍 Reliable for transfers
- 👍 Good for organizing docs
Room to improve
- 🐛 Cannot register USB hard drive
- 🐛 Ads are unclosable
- 🐛 No thumbnail view for photos
- 🐛 Sync issues with Dropbox
- 🐛 App runs slow
Bugs and requests
Power PDF
Reported bugs
4 issues- Landscape-only mode
- Text recognition produces gibberish
- Inability to undo annotations
- Issues with converting photos to PDF
Requested features
4 requests- Auto-rotate PDF pages to fit screen
- Batch conversion of photos to PDF
- Integration with cloud storage services like Dropbox
- Ability to edit and annotate PDF files
Portable USB · Cloud Ready
Reported bugs
5 issues- USB to iPhone not registering
- Ads are unclosable due to placement
- Cannot sync with Dropbox
- Videos cannot be rotated to full screen
- Pictures organized in incorrect order
Requested features
6 requests- Option to see photos stored
- Thumbnail view for photos
- Smoother implementation
- Sync with Dropbox
- Option to check space available
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- Videos can be rotated to full screen
In-app purchases
Power PDF
- Premium$4.99
Portable USB · Cloud Ready
- Remove Ads$0.99
- Cloud Feature$2.99
Questions
Is Power PDF free?
Is Portable USB · Cloud Ready free?
Which has better reviews, Power PDF or Portable USB · Cloud Ready?
Do Power PDF or Portable USB · Cloud Ready have ads?
Which is updated more often, Power PDF or Portable USB · Cloud Ready?
Other comparisons
