# 司空 vs ChatCube

The clearest difference is in-app purchases: ChatCube at none against 司空's 4. ChatCube also leads on iOS requirement (13.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 司空 sells 4 one-off in-app purchases. ChatCube asks for nothing beyond the download.

司空 ships an update every 3 weeks, ChatCube every 5 weeks. The most recent releases landed on October 18, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | 司空 | ChatCube |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/chatcube/id1593511643/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | — | Free |
| Size | 71 MB | 92 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Mac |
| Age rating | 4+ | 17+ |
| Developer | [Zhejiang Qmake Information Technology Co.,Ltd](https://appshunter.io/developer/1450462647) | [Crypto Rubiks Cube  Fuzhou Technology Company Limited](https://appshunter.io/developer/1609044435) |

## What reviewers say

### 司空

[App page](https://appshunter.io/ios/app/id1450464065)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 司空1个月会员 | $0.99 | one-time |
| 司空3个月会员 | $3.99 | one-time |
| 司空季度会员 | $9.99 | one-time |
| 司空12个月会员 | $14.99 | one-time |


### ChatCube

[App page](https://appshunter.io/ios/app/chatcube/id1593511643)

This secure messaging app offers end-to-end encryption for text, images, and voice. It provides advanced privacy features like anti-screenshot, disappearing messages, and secure voice calls. The administrator has full control over user accounts and data.

**Highlights:** End-to-end encryption, Anti-screenshot and screen recording, Disappearing messages, Encrypted voice calls, Admin control over users and data, Private deployment

**In-app purchases:** none


## Frequently asked questions

### Is 司空 free?

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

### Is ChatCube free?

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

### Do 司空 or ChatCube have ads?

Neither 司空 nor ChatCube shows ads.

### Which is updated more often, 司空 or ChatCube?

司空 ships an update every 3 weeks, and ChatCube every 5 weeks. Most recently, 司空 was updated on October 18, 2026 and ChatCube on October 16, 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.*