# U8 vs i

The clearest difference is review sentiment: U8 at 64% against i's 0%. i's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price and device support there is nothing between them.

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

U8 ships an update every 6 weeks, i every 3 weeks. The most recent releases landed on September 17, 2026 and July 17, 2026 respectively.

## The numbers

| Metric | U8 | i |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (9 ratings)](https://appshunter.io/ios/app/u8-disk/id1554732742/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | **64.3% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 26 MB | 49 MB |
| Requires iOS | 12.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ErxiangHeyi Information](https://appshunter.io/developer/1735695526) | [zhong qibiao](https://appshunter.io/developer/1118837284) |

## What reviewers say

### 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 |


### i

[App page](https://appshunter.io/ios/app/i-flashdevice-pro/id6466766349)

Easily manage all your files on iOS devices. Backup contacts and camera roll, play media, and preview documents and images. Supports a wide range of file formats for seamless transfer between devices.

**Highlights:** File management for iOS, Backup contacts and camera roll, Media playback (video, music), Document and image preview, Cross-device file exchange, Wide file format support

**In-app purchases:** none


## Frequently asked questions

### Is U8 free?

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

### Is i free?

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

### Do U8 or i have ads?

U8 shows ads; i does not.

### Which is updated more often, U8 or i?

U8 ships an update every 6 weeks, and i every 3 weeks. Most recently, U8 was updated on September 17, 2026 and i on July 17, 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.*