# 工学云 vs 火红信使

The clearest difference is review sentiment: 火红信使 at 70% against 工学云's 10%. 火红信使 also leads on rating (3.0 vs 1.3) and ads (none vs shown). 工学云's advantage is update cadence (every 2 weeks vs every 3 months) and ratings volume (23 vs 2). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

火红信使 holds the better App Store score, 3.0 against 1.3. That said, the two scores are not equally well evidenced: 工学云 has 23 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 10% of 工学云's written reviews are positive against 70% of 火红信使's.

工学云 ships an update every 2 weeks, 火红信使 every 3 months. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | 工学云 | 火红信使 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.3 (23 ratings)](https://appshunter.io/ios/app/id1458716251/reviews) | **[3.0 (2 ratings)](https://appshunter.io/ios/app/id1508435385/reviews)** |
| Number of ratings | **23** | 2 |
| Positive reviews | 10.4% of reviews | **70.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 3 months |
| Size | 248 MB | 53 MB |
| Requires iOS | 13.0 | **8.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Zhangtao Network Technology (Shanghai) Co., Ltd.](https://appshunter.io/developer/1032885562) | [琪 吴](https://appshunter.io/developer/1505062805) |

## What reviewers say

### 工学云

[App page](https://appshunter.io/ios/app/id1458716251)

**Features:** Vision Pro support

**In-app purchases:** none


### 火红信使

[App page](https://appshunter.io/ios/app/id1508435385)

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

**In-app purchases:** none


## Frequently asked questions

### Is 工学云 free?

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

### Is 火红信使 free?

火红信使 is free to download, with no in-app purchases.

### Which has better reviews, 工学云 or 火红信使?

火红信使 is rated higher. 工学云 averages 1.3 out of 5 from 23 ratings, while 火红信使 averages 3.0 from 2 ratings.

### Do 工学云 or 火红信使 have ads?

工学云 shows ads; 火红信使 does not.

### Which is updated more often, 工学云 or 火红信使?

工学云 ships an update every 2 weeks, and 火红信使 every 3 months. Most recently, 工学云 was updated on October 29, 2026 and 火红信使 on October 27, 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.*