# USB Sharp vs I

The clearest difference is rating: I at 5.0 against USB Sharp's 3.1. I also leads on in-app purchases (none vs 6) and ads (none vs shown). USB Sharp's advantage is ratings volume (18 vs 5). On price, review sentiment and device support there is nothing between them.

Both are free to download. USB Sharp sells 6 one-off in-app purchases. I asks for nothing beyond the download.

I holds the better App Store score, 5.0 against 3.1. Both are backed by a comparable volume of ratings — 18 and 5 respectively. Written reviews complicate that: 53% of USB Sharp's written reviews are positive against 50% of I's, so the app with the better star average is not the one people write more warmly about.

USB Sharp ships an update every 3 weeks, I every 9 days. The most recent releases landed on September 21, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | USB Sharp | I |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (18 ratings)](https://appshunter.io/ios/app/usb-sharp/id427762463/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/i-usbkey-pro/id1258469579/reviews)** |
| Number of ratings | **18** | 5 |
| Positive reviews | **53.2% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 55 MB | 40 MB |
| Requires iOS | 13.0 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [锦文 游](https://appshunter.io/developer/406832160) | [zhong qibiao](https://appshunter.io/developer/1118837284) |

## What reviewers say

### USB Sharp

[App page](https://appshunter.io/ios/app/usb-sharp/id427762463)

Transform your iPhone or iPad into a portable wireless storage disk for efficient file management. Upload multiple files via Chrome and Firefox, extract encrypted RAR archives, and organize documents, photos, and videos with ease.

**Highlights:** Portable wireless storage, File management, Multiple file upload, Encrypted archive extraction, Document reader, Photo viewer, Video player

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $0.99 | one-time |
| Music Player | $0.99 | one-time |
| Dropbox | $0.99 | one-time |
| Video Player | $0.99 | one-time |
| SkyDrive | $0.99 | one-time |
| Full Version | $2.99 | one-time |


### I

[App page](https://appshunter.io/ios/app/i-usbkey-pro/id1258469579)

Manage all your files on iOS devices with ease. This app allows you to exchange files between different devices and platforms, back up contacts and camera roll, and play media directly from your device. It supports a wide range of document, image, audio, and video file formats.

**Highlights:** File management for iOS devices, Cross-device file exchange, Contact and camera roll backup, Video and music playback, Image and document preview, Support for various file formats

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is USB Sharp free?

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

### Is I free?

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

### Which has better reviews, USB Sharp or I?

I is rated higher. USB Sharp averages 3.1 out of 5 from 18 ratings, while I averages 5.0 from 5 ratings.

### Do USB Sharp or I have ads?

USB Sharp shows ads; I does not.

### Which is updated more often, USB Sharp or I?

USB Sharp ships an update every 3 weeks, and I every 9 days. Most recently, USB Sharp was updated on September 21, 2026 and I on June 4, 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.*