# 法蝉 vs 阿尔法系统

The clearest difference is update cadence: 阿尔法系统 at every 3 days against 法蝉's every 11 days. 法蝉's advantage is iOS requirement (9.0 vs 15.5). 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.

法蝉 ships an update every 11 days, 阿尔法系统 every 3 days. The most recent releases landed on September 16, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | 法蝉 | 阿尔法系统 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 days | **Every 3 days** |
| Size | 65 MB | 61 MB |
| Requires iOS | **9.0** | 15.5 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 9+ |
| Developer | [成都斯沃茨科技有限公司](https://appshunter.io/developer/1247855127) | [深圳市硕赢互动信息技术有限公司](https://appshunter.io/developer/1676430309) |

## What reviewers say

### 法蝉

[App page](https://appshunter.io/ios/app/id1247855128)

**Features:** macOS Compatibility

**In-app purchases:** none


### 阿尔法系统

[App page](https://appshunter.io/ios/app/id6446170604)

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

**In-app purchases:** none


## Frequently asked questions

### Is 法蝉 free?

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

### Is 阿尔法系统 free?

阿尔法系统 is free to download, with no in-app purchases.

### Do 法蝉 or 阿尔法系统 have ads?

Neither 法蝉 nor 阿尔法系统 shows ads.

### Which is updated more often, 法蝉 or 阿尔法系统?

法蝉 ships an update every 11 days, and 阿尔法系统 every 3 days. Most recently, 法蝉 was updated on September 16, 2026 and 阿尔法系统 on September 14, 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.*