# MOMAX Backup vs U8

The clearest difference is review sentiment: U8 at 64% against MOMAX Backup's 18%. U8 also leads on ratings volume (10 vs 2). MOMAX Backup's advantage is rating (5.0 vs 4.1) and in-app purchases (none vs 1). On price, update cadence and device support there is nothing between them.

Both are free to download. U8 sells 1 one-off in-app purchase. MOMAX Backup asks for nothing beyond the download.

MOMAX Backup holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: U8 has 10 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 18% of MOMAX Backup's written reviews are positive against 64% of U8's, so the app with the better star average is not the one people write more warmly about.

MOMAX Backup ships an update every 3 months, U8 every 6 weeks. The most recent releases landed on October 7, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | MOMAX Backup | U8 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/momax-backup/id1446400473/reviews)** | [4.1 (10 ratings)](https://appshunter.io/ios/app/u8-disk/id1554732742/reviews) |
| Number of ratings | 2 | **10** |
| Positive reviews | 18.2% of reviews | **64.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 177 MB | 26 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [i-FlashDrive Inc.](https://appshunter.io/developer/1387757454) | [ErxiangHeyi Information](https://appshunter.io/developer/1735695526) |

## What reviewers say

### 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


### U8

[App page](https://appshunter.io/ios/app/u8-disk/id1554732742)

Transfer and back up any file wirelessly between your mobile devices and computers without using mobile data. Experience ultra-fast speeds for seamless file management and sharing across different platforms.

**Highlights:** Zero-flow wireless file transfer, Ultra-fast transmission speeds (up to 30MB/s), File backup and management, Cross-platform compatibility, Supports various file formats

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LifeTime | $3.99 | one-time |


## Frequently asked questions

### Is MOMAX Backup free?

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

### Is U8 free?

U8 is free to download, with in-app purchases available.

### Which has better reviews, MOMAX Backup or U8?

MOMAX Backup is rated higher. MOMAX Backup averages 5.0 out of 5 from 2 ratings, while U8 averages 4.1 from 10 ratings.

### Do MOMAX Backup or U8 have ads?

U8 shows ads; MOMAX Backup does not.

### Which is updated more often, MOMAX Backup or U8?

MOMAX Backup ships an update every 3 months, and U8 every 6 weeks. Most recently, MOMAX Backup was updated on October 7, 2026 and U8 on October 24, 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.*