# 宇星科技 vs 恺宇 KAIYU

The clearest difference is rating: 恺宇 KAIYU at 3.4 against 宇星科技's 2.6. 恺宇 KAIYU also leads on review sentiment (67% vs 32%) and iOS requirement (9.0 vs 12.0). 宇星科技's advantage is ratings volume (175 vs 5). On price, update cadence, ads and in-app purchases there is nothing between them.

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

恺宇 KAIYU holds the better App Store score, 3.4 against 2.6. That said, the two scores are not equally well evidenced: 宇星科技 has 175 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 32% of 宇星科技's written reviews are positive against 67% of 恺宇 KAIYU's.

宇星科技 ships an update every 3 weeks, 恺宇 KAIYU fortnightly. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 宇星科技 | 恺宇 KAIYU |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.6 (175 ratings)](https://appshunter.io/ios/app/id1457417598/reviews) | **[3.4 (5 ratings)](https://appshunter.io/ios/app/kaiyu/id1512072697/reviews)** |
| Number of ratings | **175** | 5 |
| Positive reviews | 31.9% of reviews | **66.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | — | Free |
| Size | 130 MB | 233 MB |
| Requires iOS | 12.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Yuxing mowang Technology Co., Ltd](https://appshunter.io/developer/1488839351) | [植川 马](https://appshunter.io/developer/1783803021) |

## What reviewers say

### 宇星科技

[App page](https://appshunter.io/ios/app/id1457417598)

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Voice activator system awesome
- 👍 Coding works
- 👍 Trace thing works
- 👍 Compass thing works
- 👍 App works really good

**What reviewers complain about**

- 🐛 Bluetooth not discoverable
- 🐛 App doesn't connect
- 🐛 App doesn't work at all
- 🐛 Robot not supported
- 🐛 App is hard to understand

**Reported bugs**

- Sets aren’t on the website
- Connects to brick but lies about connection
- Bluetooth not discoverable
- Got the wrong app
- Robot not supported on this app

**Requested features**

- Add 3.2 series support
- Make a language choosing section
- Fix coding grid blocks
- Improve voice control functionality
- Improve controls functionality


### 恺宇 KAIYU

[App page](https://appshunter.io/ios/app/kaiyu/id1512072697)

This app offers diverse control methods for an engaging experience. Explore options like button remotes, gyroscope control, route drawing, voice commands, and custom graphical programming.

**Highlights:** Multiple control styles, Button remote, Gyroscope control, Route drawing, Voice command control, Custom graphical programming

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 宇星科技 free?

宇星科技 is free to download, with no in-app purchases.

### Is 恺宇 KAIYU free?

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

### Which has better reviews, 宇星科技 or 恺宇 KAIYU?

恺宇 KAIYU is rated higher. 宇星科技 averages 2.6 out of 5 from 175 ratings, while 恺宇 KAIYU averages 3.4 from 5 ratings.

### Do 宇星科技 or 恺宇 KAIYU have ads?

Neither 宇星科技 nor 恺宇 KAIYU shows ads.

### Which is updated more often, 宇星科技 or 恺宇 KAIYU?

宇星科技 ships an update every 3 weeks, and 恺宇 KAIYU fortnightly. Most recently, 宇星科技 was updated on November 6, 2026 and 恺宇 KAIYU on November 3, 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.*