# iM.Master vs 宇星积木+

iM.Master and 宇星积木+ both sit at 2.8 stars, but that hides the real split: 47% of iM.Master's written reviews are positive against 0% of 宇星积木+'s. iM.Master also leads on ratings volume (90 vs 3). 宇星积木+'s advantage is iOS requirement (12.0 vs 15.6). On price, rating, update cadence and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 2.8 for iM.Master against 2.7 for 宇星积木+. That said, the two scores are not equally well evidenced: iM.Master has 90 ratings behind it against 3, so its average is the more settled of the two. Written reviews are what separate them: 47% of iM.Master's written reviews are positive against 0% of 宇星积木+'s.

iM.Master ships an update every 2 months, 宇星积木+ monthly. The most recent releases landed on October 1, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | iM.Master | 宇星积木+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.8 (90 ratings)](https://appshunter.io/ios/app/immaster/id1605106520/reviews)** | [2.7 (3 ratings)](https://appshunter.io/ios/app/plus/id6444075223/reviews) |
| Number of ratings | **90** | 3 |
| Positive reviews | **47.2% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free | Free |
| Size | 25 MB | 248 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [卓挺 杜](https://appshunter.io/developer/628442211) | [Shenzhen Yuxing mowang Technology Co., Ltd](https://appshunter.io/developer/1488839351) |

## What reviewers say

### iM.Master

[App page](https://appshunter.io/ios/app/immaster/id1605106520)

Control building block robots with various intuitive methods. Explore fun through conventional key controls, gravity sensing, line drawing, and action programming.

**Highlights:** Conventional key remote control, Gravity sensing control, Line drawing remote control, Action programming control, Multiple control styles

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

**In-app purchases:** none


### 宇星积木+

[App page](https://appshunter.io/ios/app/plus/id6444075223)

Control intelligent building block toys like writing machines and excavators. This app connects to Yuxing Technology's smart block products for interactive play and creation.

**Highlights:** Control building block writing machines, Operate intelligent excavators, Connects to Yuxing Technology products, Interactive play and creation

**In-app purchases:** none


## Frequently asked questions

### Is iM.Master free?

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

### Is 宇星积木+ free?

宇星积木+ is free to download, with no in-app purchases.

### Which has better reviews, iM.Master or 宇星积木+?

iM.Master is rated higher. iM.Master averages 2.8 out of 5 from 90 ratings, while 宇星积木+ averages 2.7 from 3 ratings.

### Do iM.Master or 宇星积木+ have ads?

Neither iM.Master nor 宇星积木+ shows ads.

### Which is updated more often, iM.Master or 宇星积木+?

iM.Master ships an update every 2 months, and 宇星积木+ monthly. Most recently, iM.Master was updated on October 1, 2026 and 宇星积木+ on September 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.*