# USB Disk SE, File Manager vs Air Doc Viewer

The clearest difference is review sentiment: USB Disk SE, File Manager at 76% against Air Doc Viewer's 0%. USB Disk SE, File Manager also leads on rating (4.4 vs 3.0) and update cadence (every 2 months vs every 20 months). Air Doc Viewer's advantage is iOS requirement (12.0 vs 16.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. USB Disk SE, File Manager sells 4 in-app purchases, starting at $1.99 per 7 days and Air Doc Viewer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

USB Disk SE, File Manager holds the better App Store score, 4.4 against 3.0. That said, the two scores are not equally well evidenced: USB Disk SE, File Manager has 854 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 76% of USB Disk SE, File Manager's written reviews are positive against 0% of Air Doc Viewer's.

USB Disk SE, File Manager ships an update every 2 months, Air Doc Viewer every 20 months. The most recent releases landed on October 29, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | USB Disk SE, File Manager | Air Doc Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (854 ratings)](https://appshunter.io/ios/app/usb-disk-se-file-manager/id370531520/reviews)** | [3.0 (3 ratings)](https://appshunter.io/ios/app/air-doc-viewer/id1188008802/reviews) |
| Number of ratings | **854** | 3 |
| Positive reviews | **76.3% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 2 months** | Every 20 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 224 MB | 9 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | **iPhone, iPad, Apple TV, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Imesart S.a.r.l.](https://appshunter.io/developer/290160983) | [IT Traunau](https://appshunter.io/developer/326305093) |

## What reviewers say

### USB Disk SE, File Manager

[App page](https://appshunter.io/ios/app/usb-disk-se-file-manager/id370531520)

This app allows you to store, view, and manage documents on your iPhone and iPad. It offers a built-in viewer, easy file transfers via iTunes, and integration with cloud storage services. Enjoy a simple interface with powerful features for organizing and accessing your files.

**Highlights:** Cloud storage integration (Dropbox, Google Drive, OneDrive, Box), Store and view files on iPhone/iPod, Intuitive swipe navigation, File preview with thumbnails, Copy, paste, cut, delete, and create files, Email documents, USB file transfers

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| USB Disk Pro Weekly | $1.99 | per 7 days |
| USB Disk Pro Monthly | $4.99 | per month |
| USB Disk Pro Half Yearly | $19.99 | per 6 months |
| USB Disk Pro Yearly | $39.99 | per year |

**What reviewers like**

- 💾 Easy file storage and access
- 📁 Convenient document management
- 🔍 Supports various file formats
- ⚙️ Useful for transferring files between devices

**What reviewers complain about**

- 🐛 Crashes and freezes reported
- 🔒 Limited file access and editing capabilities
- 💰 Paywall for some features
- 🔍 Difficulty organizing files

**Reported bugs**

- Crashes when opening certain file types
- Syncing issues with iTunes
- Compatibility problems with newer iOS versions

**Requested features**

- Ability to edit documents within the app
- Improved file management with folders and renaming
- Support for more file types
- Wireless file transfer without iTunes


### Air Doc Viewer

[App page](https://appshunter.io/ios/app/air-doc-viewer/id1188008802)

Securely transfer documents, images, and music between your iOS devices and computers without using the cloud. Files remain on your local network and are encrypted during transmission. Access files via a web browser and protect sensitive data with a private area.

**Highlights:** Local network file transfer, Encrypted transmissions, Private file area with TouchID/password, Web browser access from any OS, Stream media to browser or AppleTV, Use iPad as secondary Mac display, Drag and drop file transfer

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Air Doc Pro Upgrade | $2.99 | one-time |


## Frequently asked questions

### Is USB Disk SE, File Manager free?

USB Disk SE, File Manager is free to download, with in-app purchases available.

### Is Air Doc Viewer free?

Air Doc Viewer is free to download, with in-app purchases available.

### Which has better reviews, USB Disk SE, File Manager or Air Doc Viewer?

USB Disk SE, File Manager is rated higher. USB Disk SE, File Manager averages 4.4 out of 5 from 854 ratings, while Air Doc Viewer averages 3.0 from 3 ratings.

### Do USB Disk SE, File Manager or Air Doc Viewer have ads?

Both USB Disk SE, File Manager and Air Doc Viewer show ads.

### Which is updated more often, USB Disk SE, File Manager or Air Doc Viewer?

USB Disk SE, File Manager ships an update every 2 months, and Air Doc Viewer every 20 months. Most recently, USB Disk SE, File Manager was updated on October 29, 2026 and Air Doc Viewer on October 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.*