# 蓝天系统 vs HamUV

The clearest difference is update cadence: 蓝天系统 at daily against HamUV's every 10 days. 蓝天系统 also leads on iOS requirement (9.0 vs 18.6). 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.

蓝天系统 ships an update daily, HamUV every 10 days. The most recent releases landed on October 4, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | 蓝天系统 | HamUV |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Daily** | Every 10 days |
| Size | 27 MB | 5 MB |
| Requires iOS | **9.0** | 18.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Foshan Qianlong Digirization Technology Co., Ltd.](https://appshunter.io/developer/1610445576) | [SHOUYUE LIU](https://appshunter.io/developer/1871621426) |

## What reviewers say

### 蓝天系统

[App page](https://appshunter.io/ios/app/id6443536631)

**Features:** macOS Compatibility

**In-app purchases:** none


### HamUV

[App page](https://appshunter.io/ios/app/hamuv/id6758227673)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 蓝天系统 free?

蓝天系统 is free to download, with no in-app purchases.

### Is HamUV free?

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

### Do 蓝天系统 or HamUV have ads?

Neither 蓝天系统 nor HamUV shows ads.

### Which is updated more often, 蓝天系统 or HamUV?

蓝天系统 ships an update daily, and HamUV every 10 days. Most recently, 蓝天系统 was updated on October 4, 2026 and HamUV on October 10, 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.*