# uDisk vs U

The clearest difference is review sentiment: uDisk at 84% against U's 24%. uDisk also leads on rating (4.3 vs 3.3) and ratings volume (233 vs 19). U's advantage is in-app purchases (none vs 1) and iOS requirement (9.0 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. U asks for nothing beyond the download.

uDisk holds the better App Store score, 4.3 against 3.3. That said, the two scores are not equally well evidenced: uDisk has 233 ratings behind it against 19, so its average is the more settled of the two. Written reviews point the same way: 84% of uDisk's written reviews are positive against 24% of U's.

uDisk ships an update every 2 months, U every 5 weeks. The most recent releases landed on September 25, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | uDisk | U |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (233 ratings)](https://appshunter.io/ios/app/udisk/id532963658/reviews)** | [3.3 (19 ratings)](https://appshunter.io/ios/app/u-drive/id934692938/reviews) |
| Number of ratings | **233** | 19 |
| Positive reviews | **83.7% of reviews** | 23.8% 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 | 46 MB |
| Requires iOS | 11.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Brown Bear Technology Co., LTD](https://appshunter.io/developer/480204138) | [Mei-Hui Wang](https://appshunter.io/developer/934692937) |

## 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


### U

[App page](https://appshunter.io/ios/app/u-drive/id934692938)

Organize and manage files from your iPhone or iPad on external accessories. Features include a photo viewer with backup options, a music player with playlist generation, and robust file management tools like copy, move, and rename.

**Highlights:** Organize files on external accessories, Photo viewer with backup export, Music player with folder-based playlists, Copy, move, delete, and rename files, File transfer with Dropbox, Open files in other applications

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is uDisk free?

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

### Is U free?

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

### Which has better reviews, uDisk or U?

uDisk is rated higher. uDisk averages 4.3 out of 5 from 233 ratings, while U averages 3.3 from 19 ratings.

### Do uDisk or U have ads?

Neither uDisk nor U shows ads.

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

uDisk ships an update every 2 months, and U every 5 weeks. Most recently, uDisk was updated on September 25, 2026 and U on September 18, 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.*