# uDisk vs DUO

The clearest difference is review sentiment: uDisk at 84% against DUO's 13%. uDisk also leads on rating (4.3 vs 1.9) and ratings volume (233 vs 52). DUO's advantage is in-app purchases (none vs 1) and iOS requirement (8.0 vs 11.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. uDisk sells 1 one-off in-app purchase. DUO asks for nothing beyond the download.

uDisk holds the better App Store score, 4.3 against 1.9. Both are backed by a comparable volume of ratings — 233 and 52 respectively. Written reviews point the same way: 84% of uDisk's written reviews are positive against 13% of DUO's.

uDisk ships an update every 2 months, DUO every 5 weeks. The most recent releases landed on October 13, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | uDisk | DUO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (233 ratings)](https://appshunter.io/ios/app/udisk/id532963658/reviews)** | [1.9 (52 ratings)](https://appshunter.io/ios/app/duo-link/id982410478/reviews) |
| Number of ratings | **233** | 52 |
| Positive reviews | **83.7% of reviews** | 12.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 20 MB | 31 MB |
| Requires iOS | 11.0 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Brown Bear Technology Co., LTD](https://appshunter.io/developer/480204138) | [Gopod Group Limited](https://appshunter.io/developer/975108489) |

## What reviewers say

### uDisk

[App page](https://appshunter.io/ios/app/udisk/id532963658)

Transform your iOS device into a portable USB drive. Easily transfer files between your device and computer via Wi-Fi or iTunes. Browse, play, and edit various file types directly on your phone or tablet.

**Highlights:** Use iOS device as USB disk, Wi-Fi file transfer, iTunes File Sharing, Browse various file types, Play music and video, Edit text files, Create directories and sort files

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Version | $3.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Fast transfer
- 👍 Good for organizing files
- 👍 Useful for freeing up phone space
- 👍 Versatile and durable

**What reviewers complain about**

- 🐛 Does not work for some users
- 🐛 App requires download to each device
- 🐛 Cannot rotate screen
- 🐛 Does not work as a standalone flash drive
- 🐛 Limited file transfer capability

**Reported bugs**

- Cannot save files manually
- Material does not always show
- Does not work after initial use
- Cannot rotate screen
- Does not transfer videos from phone

**Requested features**

- App should be pre-loaded on the thumbdrive
- More clarity on app functionality and safety


### DUO

[App page](https://appshunter.io/ios/app/duo-link/id982410478)

Expand storage for your Apple devices and computers. Easily transfer files, back up contacts, and play media directly from the device. Free up space on your iPhone and iPad with this versatile storage solution.

**Highlights:** Expand iPhone/iPad storage, USB and Lightning connectors, Contact backup and restore, Independent music/video playback, Stream 1080p videos, File management

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is uDisk free?

uDisk 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, uDisk or DUO?

uDisk is rated higher. uDisk averages 4.3 out of 5 from 233 ratings, while DUO averages 1.9 from 52 ratings.

### Do uDisk or DUO have ads?

Neither uDisk nor DUO shows ads.

### Which is updated more often, uDisk or DUO?

uDisk ships an update every 2 months, and DUO every 5 weeks. Most recently, uDisk was updated on October 13, 2026 and DUO on October 15, 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.*