# FileViewer USB for iPhone vs File Master

The clearest difference is price: File Master at Free against FileViewer USB for iPhone's $3.99. File Master also leads on rating (4.5 vs 4.0) and ratings volume (6.9K vs 2). FileViewer USB for iPhone's advantage is in-app purchases (none vs 5) and ads (none vs shown). On review sentiment, device support and iOS requirement there is nothing between them.

File Master is free to download; FileViewer USB for iPhone costs $3.99 up front. File Master sells 5 in-app purchases, starting at $3.99 per year. FileViewer USB for iPhone asks for nothing beyond the download.

File Master holds the better App Store score, 4.5 against 4.0. That said, the two scores are not equally well evidenced: File Master has 6.9K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 56% of FileViewer USB for iPhone's written reviews are positive against 59% of File Master's.

FileViewer USB for iPhone ships an update every 4 months, File Master monthly. Both last shipped on September 25, 2026.

## The numbers

| Metric | FileViewer USB for iPhone | File Master |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | [4.0 (2 ratings)](https://appshunter.io/ios/app/fileviewer-usb-for-iphone/id382994576/reviews) | **[4.5 (6.9K ratings)](https://appshunter.io/ios/app/file-master-document-manager/id1310286260/reviews)** |
| Number of ratings | 2 | **6.9K** |
| Positive reviews | 55.6% of reviews | **58.5% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#185** | — |
| Size | 17 MB | 129 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Mitchell COHEN](https://appshunter.io/developer/301383007) | [俐 马](https://appshunter.io/developer/1896144174) |

## What reviewers say

### FileViewer USB for iPhone

[App page](https://appshunter.io/ios/app/fileviewer-usb-for-iphone/id382994576)

**Currently charting:** #185 Top Paid · Business (US App Store)

This app allows you to view, store, transfer, print, and email a wide variety of file types on your iPhone. It offers robust PDF viewing capabilities, supports numerous document and media formats, and integrates with cloud storage services.

**Highlights:** View over 30 file types, Robust PDF reader, File and folder management, Transfer via USB, Wi-Fi, AirDrop, Email, Cloud storage integration, Print documents and images

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

**In-app purchases:** none


### File Master

[App page](https://appshunter.io/ios/app/file-master-document-manager/id1310286260)

Organize, store, and manage all your files and documents efficiently. Transfer files, back up data, and open cloud files. Read various document types and play audio/video with casting support.

**Highlights:** File organization and management, Audio & Video Player with casting, Text Reader for multiple formats, Archive extraction and compression, File transfer via browser and LAN, Cloud drive integration, Passcode protected file vault

**Features:** Family Sharing, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual professional version | $3.99 | per year |
| Universal Video Player | $0.99 | one-time |
| Remove Ads | $0.99 | one-time |
| Passcode Lock | $0.99 | one-time |
| Professional Version | $5.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Fast file transfers
- 💡 Useful file organization features
- 🔒 Secure file storage

**What reviewers complain about**

- 🐛 Glitchy performance
- 🔍 Difficult to navigate
- 💰 Excessive ads/in-app purchases
- ⚠️ Compatibility issues

**Reported bugs**

- Crashes when opening certain file types
- WiFi transfer feature not working as expected
- Compression tool not functioning properly
- Inability to access external storage devices

**Requested features**

- Add dark mode option
- Improve file transfer speeds
- Enhance folder management capabilities
- Provide better integration with native iOS file system


## Frequently asked questions

### Is FileViewer USB for iPhone free?

FileViewer USB for iPhone costs $3.99, with no in-app purchases.

### Is File Master free?

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

### Which has better reviews, FileViewer USB for iPhone or File Master?

File Master is rated higher. FileViewer USB for iPhone averages 4.0 out of 5 from 2 ratings, while File Master averages 4.5 from 6.9K ratings.

### Do FileViewer USB for iPhone or File Master have ads?

File Master shows ads; FileViewer USB for iPhone does not.

### Which is updated more often, FileViewer USB for iPhone or File Master?

FileViewer USB for iPhone ships an update every 4 months, and File Master monthly. Most recently, FileViewer USB for iPhone was updated on September 25, 2026 and File Master on September 25, 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.*