# iUSB Pro vs i4Flash

The clearest difference is rating: iUSB Pro at 2.6 against i4Flash's 1.4. iUSB Pro also leads on ratings volume (1.1K vs 12) and review sentiment (14% vs 5%). i4Flash's advantage is update cadence (every 2 weeks vs every 3 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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

iUSB Pro holds the better App Store score, 2.6 against 1.4. That said, the two scores are not equally well evidenced: iUSB Pro has 1.1K ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 14% of iUSB Pro's written reviews are positive against 5% of i4Flash's.

iUSB Pro ships an update every 3 months, i4Flash every 2 weeks. The most recent releases landed on September 28, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | iUSB Pro | i4Flash |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.6 (1.1K ratings)](https://appshunter.io/ios/app/iusb-pro/id1069615726/reviews)** | [1.4 (12 ratings)](https://appshunter.io/ios/app/i4flash/id1088761982/reviews) |
| Number of ratings | **1.1K** | 12 |
| Positive reviews | **14.0% of reviews** | 4.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 21 MB | 145 MB |
| Requires iOS | 9.0 | 9.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Feitianxia Technology Co, Ltd.](https://appshunter.io/developer/536103551) | [汉福 陈](https://appshunter.io/developer/1636423746) |

## What reviewers say

### iUSB Pro

[App page](https://appshunter.io/ios/app/iusb-pro/id1069615726)

Expand your Apple device's storage by backing up photos, videos, and contacts to an external device. Capture media directly to external storage and transfer files between devices, including non-Apple ones. Enjoy media stored on your external drive.

**Highlights:** Backup photos and videos, Backup contacts, Save media directly to external storage, Transfer files between devices, Play media from external storage, Expand device storage

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Fast and useful
- 👍 Great app and connector
- 🚀 Smooth file transfer

**What reviewers complain about**

- 🐛 Crashes frequently
- 🐛 Doesn't recognize device
- 🐛 Glitchy and unreliable
- 🐛 Compatibility issues with newer iPhones
- 🐛 Crashes when saving to camera roll

**Reported bugs**

- Doesn't work on iOS 11 or iPhone 8/X
- Folders show as empty even when files are present
- Can't transfer large videos or lots of small files
- Corrupts SD card and makes it unusable

**Requested features**

- Add support for Files app on iOS 11
- Improve music playback features
- Add option to open multiple files at once
- Provide better file management tools


### i4Flash

[App page](https://appshunter.io/ios/app/i4flash/id1088761982)

Manage your media files with ease. This app allows you to view, organize, and share photos, music, and documents. It supports various file operations and playback features for a comprehensive media experience.

**Highlights:** Media thumbnail display (video, photo, music), List/thumbnail view with sharing, File operations: copy, cut, delete, create, rename, Local/storage data transmission, Photo slideshow mode, Music playback with artwork and repeat modes, Document support for various formats

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iUSB Pro free?

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

### Is i4Flash free?

i4Flash is free to download, with no in-app purchases.

### Which has better reviews, iUSB Pro or i4Flash?

iUSB Pro is rated higher. iUSB Pro averages 2.6 out of 5 from 1.1K ratings, while i4Flash averages 1.4 from 12 ratings.

### Do iUSB Pro or i4Flash have ads?

Neither iUSB Pro nor i4Flash shows ads.

### Which is updated more often, iUSB Pro or i4Flash?

iUSB Pro ships an update every 3 months, and i4Flash every 2 weeks. Most recently, iUSB Pro was updated on September 28, 2026 and i4Flash on September 13, 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.*