# U8 vs OpenProbe

The clearest difference is in-app purchases: OpenProbe at none against U8's 1. OpenProbe also leads on ads (none vs shown) and update cadence (every 2 weeks vs every 6 weeks). U8's advantage is iOS requirement (12.0 vs 15.6). On price and device support there is nothing between them.

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

U8 ships an update every 6 weeks, OpenProbe every 2 weeks. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | U8 | OpenProbe |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (10 ratings)](https://appshunter.io/ios/app/u8-disk/id1554732742/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 64.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 26 MB | 30 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ErxiangHeyi Information](https://appshunter.io/developer/1735695526) | [宇翔 姚](https://appshunter.io/developer/6777889848) |

## 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 |


### OpenProbe

[App page](https://appshunter.io/ios/app/openprobe/id6778004007)

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

**In-app purchases:** none


## Frequently asked questions

### Is U8 free?

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

### Is OpenProbe free?

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

### Do U8 or OpenProbe have ads?

U8 shows ads; OpenProbe does not.

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

U8 ships an update every 6 weeks, and OpenProbe every 2 weeks. Most recently, U8 was updated on October 24, 2026 and OpenProbe on October 28, 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.*