# iDiskk Pro vs DUO

The clearest difference is ratings volume: iDiskk Pro at 321 against DUO's 86. On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 2.5 for iDiskk Pro against 2.5 for DUO. Both are backed by a comparable volume of ratings — 321 and 86 respectively. Written reviews split almost evenly too, at 14% and 15% positive.

iDiskk Pro ships an update every 2 months, DUO every 3 months. The most recent releases landed on October 22, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | iDiskk Pro | DUO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.5 (321 ratings)](https://appshunter.io/ios/app/idiskk-pro/id1006564880/reviews) | **[2.5 (86 ratings)](https://appshunter.io/ios/app/duo-link-30/id1088185359/reviews)** |
| Number of ratings | **321** | 86 |
| Positive reviews | 13.8% of reviews | **14.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | Free |
| Size | 22 MB | 34 MB |
| Requires iOS | 9.0 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Feitianxia Technology Co, Ltd.](https://appshunter.io/developer/536103551) | [Gopod Group Limited](https://appshunter.io/developer/975108489) |

## What reviewers say

### iDiskk Pro

[App page](https://appshunter.io/ios/app/idiskk-pro/id1006564880)

Manage files on a dual-connector USB drive. Seamlessly transfer data between your iOS device and Mac/PC, back up photos and contacts, and enjoy direct playback of media files. This app unlocks the full potential of your external storage solution.

**Highlights:** Browse files on iDiskk and app, Transfer files between iDiskk and app, Backup iOS photos to iDiskk, Backup and restore iOS contacts, Direct music and movie playback

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Fast file transfers
- ⚙️ Useful device for expanding storage
- 👍 Easy to use app

**What reviewers complain about**

- 🐛 App crashes and freezes
- ⚠️ Compatibility issues with newer iOS versions
- 🔌 Device stops working after some time
- 🔍 Poor customer support

**Reported bugs**

- App crashes when trying to copy/transfer files
- Device not recognized by app after iOS updates
- Corrupted files after transfer
- Thumbnails not updating correctly after formatting SD card

**Requested features**

- Add 'move' option instead of just 'copy'
- Display more file information
- Allow selecting multiple files for transfer
- Improve transfer speed


### 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 iDiskk Pro free?

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

### Is DUO free?

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

### Which has better reviews, iDiskk Pro or DUO?

DUO is rated higher. iDiskk Pro averages 2.5 out of 5 from 321 ratings, while DUO averages 2.5 from 86 ratings.

### Do iDiskk Pro or DUO have ads?

Neither iDiskk Pro nor DUO shows ads.

### Which is updated more often, iDiskk Pro or DUO?

iDiskk Pro ships an update every 2 months, and DUO every 3 months. Most recently, iDiskk Pro was updated on October 22, 2026 and DUO on October 28, 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.*