# iM.Master vs 宇星积木吧

The clearest difference is update cadence: 宇星积木吧 at every 4 weeks against iM.Master's every 2 months. 宇星积木吧 also leads on iOS requirement (12.0 vs 15.6). On price, ads, 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.

iM.Master ships an update every 2 months, 宇星积木吧 every 4 weeks. Both last shipped on October 1, 2026.

## The numbers

| Metric | iM.Master | 宇星积木吧 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.8 (90 ratings)](https://appshunter.io/ios/app/immaster/id1605106520/reviews)** | — |
| Number of ratings | **90** | — |
| Positive reviews | 47.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 weeks** |
| Monetization | Free | — |
| Size | 25 MB | 41 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


### 宇星积木吧

[App page](https://appshunter.io/ios/app/id6449288411)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iM.Master free?

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

### Is 宇星积木吧 free?

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

### Do iM.Master or 宇星积木吧 have ads?

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

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

iM.Master ships an update every 2 months, and 宇星积木吧 every 4 weeks. Most recently, iM.Master was updated on October 1, 2026 and 宇星积木吧 on October 1, 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.*