# i vs U8

i and U8 both sit at 4.0 stars, but that hides the real split: 64% of U8's written reviews are positive against 18% of i's. U8 also leads on ratings volume (9 vs 2). i's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, rating, update cadence 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.

On the App Store both sit at effectively the same score — 4.0 for i against 4.0 for U8. Both are backed by a comparable volume of ratings — 2 and 9 respectively. Written reviews are what separate them: 18% of i's written reviews are positive against 64% of U8's.

i ships an update every 3 weeks, U8 every 6 weeks. The most recent releases landed on September 18, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | i | U8 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (2 ratings)](https://appshunter.io/ios/app/i-reader/id1146366759/reviews) | [4.0 (9 ratings)](https://appshunter.io/ios/app/u8-disk/id1554732742/reviews) |
| Number of ratings | 2 | **9** |
| Positive reviews | 18.2% of reviews | **64.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 98 MB | 26 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ShenZhen 0101 technology Co.,Ltd](https://appshunter.io/developer/994444596) | [ErxiangHeyi Information](https://appshunter.io/developer/1735695526) |

## What reviewers say

### i

[App page](https://appshunter.io/ios/app/i-reader/id1146366759)

Manage all your files on iOS devices with this app. Easily exchange files between different devices and platforms, and play various media formats. It also supports backing up contacts and your camera roll.

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

**Features:** macOS Compatibility

**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 i free?

i 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, i or U8?

i and U8 are both rated 4.0 out of 5 on the App Store, from 2 and 9 ratings respectively.

### Do i or U8 have ads?

U8 shows ads; i does not.

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

i ships an update every 3 weeks, and U8 every 6 weeks. Most recently, i was updated on September 18, 2026 and U8 on September 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.*