# Power PDF vs Portable USB · Cloud Ready

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.

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.

## The numbers

| Metric | Power PDF | Portable USB · Cloud Ready |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (1K ratings)](https://appshunter.io/ios/app/power-pdf-pdf-manager/id592355306/reviews)** | [4.2 (59 ratings)](https://appshunter.io/ios/app/portable-usb-cloud-ready/id648162472/reviews) |
| Number of ratings | **1K** | 59 |
| Positive reviews | 65.0% of reviews | **81.1% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 75 MB | 39 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ComcSoft Corporation](https://appshunter.io/developer/413971334) | [炜 桂](https://appshunter.io/developer/599269607) |

## What reviewers say

### Power PDF

[App page](https://appshunter.io/ios/app/power-pdf-pdf-manager/id592355306)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | one-time |

**What reviewers like**

- 👍 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

**What reviewers complain about**

- 🐛 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

**Reported bugs**

- Landscape-only mode
- Text recognition produces gibberish
- Inability to undo annotations
- Issues with converting photos to PDF

**Requested features**

- 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

[App page](https://appshunter.io/ios/app/portable-usb-cloud-ready/id648162472)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |
| Cloud Feature | $2.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 👍 Great for file management
- 👍 Supports multiple clouds
- 👍 Reliable for transfers
- 👍 Good for organizing docs

**What reviewers complain about**

- 🐛 Cannot register USB hard drive
- 🐛 Ads are unclosable
- 🐛 No thumbnail view for photos
- 🐛 Sync issues with Dropbox
- 🐛 App runs slow

**Reported bugs**

- 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**

- Option to see photos stored
- Thumbnail view for photos
- Smoother implementation
- Sync with Dropbox
- Option to check space available


## Frequently asked questions

### Is Power PDF free?

Power PDF is free to download, with in-app purchases available.

### Is Portable USB · Cloud Ready free?

Portable USB · Cloud Ready is free to download, with in-app purchases available.

### Which has better reviews, Power PDF or Portable USB · Cloud Ready?

Power PDF is rated higher. Power PDF averages 4.8 out of 5 from 1K ratings, while Portable USB · Cloud Ready averages 4.2 from 59 ratings.

### Do Power PDF or Portable USB · Cloud Ready have ads?

Both Power PDF and Portable USB · Cloud Ready show ads.

### Which is updated more often, Power PDF or Portable USB · Cloud Ready?

Power PDF ships an update every 3 months, and Portable USB · Cloud Ready every 3 months. Most recently, Power PDF was updated on September 21, 2026 and Portable USB · Cloud Ready on September 21, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*