# USB Sharp vs MOMAX Backup

The clearest difference is review sentiment: USB Sharp at 63% against MOMAX Backup's 18%. USB Sharp also leads on update cadence (every 3 weeks vs every 3 months) and ratings volume (18 vs 2). MOMAX Backup's advantage is rating (5.0 vs 3.1) and in-app purchases (none vs 6). On price and device support there is nothing between them.

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

MOMAX Backup holds the better App Store score, 5.0 against 3.1. That said, the two scores are not equally well evidenced: USB Sharp has 18 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 63% of USB Sharp's written reviews are positive against 18% of MOMAX Backup'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, MOMAX Backup every 3 months. The most recent releases landed on October 21, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | USB Sharp | MOMAX Backup |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (18 ratings)](https://appshunter.io/ios/app/usb-sharp/id427762463/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/momax-backup/id1446400473/reviews)** |
| Number of ratings | **18** | 2 |
| Positive reviews | **62.9% of reviews** | 18.2% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 55 MB | 177 MB |
| Requires iOS | 13.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [锦文 游](https://appshunter.io/developer/406832160) | [i-FlashDrive Inc.](https://appshunter.io/developer/1387757454) |

## 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 |


### MOMAX Backup

[App page](https://appshunter.io/ios/app/momax-backup/id1446400473)

Easily manage and back up all your files from iOS devices. Transfer data between different devices and platforms, supporting over 45 file formats including documents, images, audio, and video.

**Highlights:** File management for iOS devices, Cross-device and cross-platform file exchange, Backup Camera Roll, Contacts, and Calendar, Supports over 45 file formats, Versatile data control

**In-app purchases:** none


## Frequently asked questions

### Is USB Sharp free?

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

### Is MOMAX Backup free?

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

### Which has better reviews, USB Sharp or MOMAX Backup?

MOMAX Backup is rated higher. USB Sharp averages 3.1 out of 5 from 18 ratings, while MOMAX Backup averages 5.0 from 2 ratings.

### Do USB Sharp or MOMAX Backup have ads?

USB Sharp shows ads; MOMAX Backup does not.

### Which is updated more often, USB Sharp or MOMAX Backup?

USB Sharp ships an update every 3 weeks, and MOMAX Backup every 3 months. Most recently, USB Sharp was updated on October 21, 2026 and MOMAX Backup on October 7, 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.*