# U8 vs 机械年轮

The clearest difference is rating: 机械年轮 at 5.0 against U8's 4.1. 机械年轮 also leads on ads (none vs shown) and update cadence (every 3 days vs every 6 weeks). U8's advantage is ratings volume (10 vs 1) and device support (3 vs 1). On price and in-app purchases there is nothing between them.

Both are free to download. U8 sells 1 one-off in-app purchase and 机械年轮 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

机械年轮 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 1, so its average is the more settled of the two.

U8 ships an update every 6 weeks, 机械年轮 every 3 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | U8 | 机械年轮 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (10 ratings)](https://appshunter.io/ios/app/u8-disk/id1554732742/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6821200781/reviews)** |
| Number of ratings | **10** | 1 |
| Positive reviews | 64.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 26 MB | 18 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ErxiangHeyi Information](https://appshunter.io/developer/1735695526) | [弋 谢](https://appshunter.io/developer/6820453140) |

## 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 |


### 机械年轮

[App page](https://appshunter.io/ios/app/id6821200781)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MechTime Pro | $2.99 | one-time |


## Frequently asked questions

### Is U8 free?

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

### Is 机械年轮 free?

机械年轮 is free to download, with in-app purchases available.

### Which has better reviews, U8 or 机械年轮?

机械年轮 is rated higher. U8 averages 4.1 out of 5 from 10 ratings, while 机械年轮 averages 5.0 from 1 ratings.

### Do U8 or 机械年轮 have ads?

U8 shows ads; 机械年轮 does not.

### Which is updated more often, U8 or 机械年轮?

U8 ships an update every 6 weeks, and 机械年轮 every 3 days. Most recently, U8 was updated on November 3, 2026 and 机械年轮 on October 31, 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.*