# Portable USB · Cloud Ready vs DUO

The clearest difference is review sentiment: Portable USB · Cloud Ready at 82% against DUO's 18%. Portable USB · Cloud Ready also leads on rating (4.2 vs 2.5). DUO's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price, ratings volume, update cadence and device support there is nothing between them.

Both are free to download. Portable USB · Cloud Ready sells 2 one-off in-app purchases. DUO asks for nothing beyond the download.

Portable USB · Cloud Ready holds the better App Store score, 4.2 against 2.5. Both are backed by a comparable volume of ratings — 60 and 86 respectively. Written reviews point the same way: 82% of Portable USB · Cloud Ready's written reviews are positive against 18% of DUO's.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 22, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Portable USB · Cloud Ready | DUO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (60 ratings)](https://appshunter.io/ios/app/portable-usb-cloud-ready/id648162472/reviews)** | [2.5 (86 ratings)](https://appshunter.io/ios/app/duo-link-30/id1088185359/reviews) |
| Number of ratings | 60 | **86** |
| Positive reviews | **81.6% of reviews** | 17.5% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 39 MB | 34 MB |
| Requires iOS | 13.0 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [炜 桂](https://appshunter.io/developer/599269607) | [Gopod Group Limited](https://appshunter.io/developer/975108489) |

## What reviewers say

### 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


### DUO

[App page](https://appshunter.io/ios/app/duo-link-30/id1088185359)

This multi-functional storage device offers a dual connector for seamless file transfer and management between Apple devices and computers. It allows for backing up contacts, streaming high-definition videos, and managing files directly from the device.

**Highlights:** Dual USB and Lightning connectors, Contact backup and restore, Independent music and video playback, 1080p video streaming, File management (copy, delete, export), Browse external and local files

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- ✅ Easy file transfer between devices
- 📱 Works with multiple iOS devices
- 🎵 Can store and play media files
- 💾 Provides additional storage capacity
- 🔄 Simple backup functionality for photos/videos

**What reviewers complain about**

- 🐛 Frequent app crashes and freezes
- ❌ Incompatible with newer iPhone models
- 📉 Poor app stability after updates
- 🔌 Hardware not recognized by app
- 💥 Data loss issues reported

**Reported bugs**

- App crashes when playing MP3 files
- App crashes when transferring large files
- App crashes when viewing videos
- App crashes when adjusting volume during video playback
- App crashes when copying photos

**Requested features**

- Video thumbnail preview functionality
- File sharing with other applications
- Password/file locking capability
- Ability to select multiple files in view mode
- Wireless streaming to Apple TV


## Frequently asked questions

### Is Portable USB · Cloud Ready free?

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

### Is DUO free?

DUO is free to download, with no in-app purchases.

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

Portable USB · Cloud Ready is rated higher. Portable USB · Cloud Ready averages 4.2 out of 5 from 60 ratings, while DUO averages 2.5 from 86 ratings.

### Do Portable USB · Cloud Ready or DUO have ads?

Portable USB · Cloud Ready shows ads; DUO does not.

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

Portable USB · Cloud Ready ships an update every 3 months, and DUO every 3 months. Most recently, Portable USB · Cloud Ready was updated on October 22, 2026 and DUO on October 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.*