# 节水通 vs 久安卫民

The clearest difference is iOS requirement: 节水通 at 13.0 against 久安卫民's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

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

节水通 ships an update every 3 weeks, 久安卫民 every 2 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | 节水通 | 久安卫民 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/id6450913988/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Size | 17 MB | 193 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [SHANGHAI JICHEN DIGITAL WATER SCIENCE & TECHNOLOGY CO, LTD](https://appshunter.io/developer/1870878627) | [摩帆科技服务(上海)有限公司](https://appshunter.io/developer/1684475552) |

## What reviewers say

### 节水通

[App page](https://appshunter.io/ios/app/id1509679825)

**Features:** macOS Compatibility

**In-app purchases:** none


### 久安卫民

[App page](https://appshunter.io/ios/app/id6450913988)

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

**In-app purchases:** none


## Frequently asked questions

### Is 节水通 free?

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

### Is 久安卫民 free?

久安卫民 is free to download, with no in-app purchases.

### Do 节水通 or 久安卫民 have ads?

Neither 节水通 nor 久安卫民 shows ads.

### Which is updated more often, 节水通 or 久安卫民?

节水通 ships an update every 3 weeks, and 久安卫民 every 2 weeks. Most recently, 节水通 was updated on November 3, 2026 and 久安卫民 on November 3, 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.*