# 鲁水防御 vs 河长E巡

The clearest difference is iOS requirement: 河长E巡 at 10.0 against 鲁水防御's 13.0. 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.

鲁水防御 ships an update every 2 months, 河长E巡 every 5 weeks. The most recent releases landed on October 6, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | 鲁水防御 | 河长E巡 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Size | 140 MB | 97 MB |
| Requires iOS | 13.0 | **10.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [绍钢 江](https://appshunter.io/developer/1365400725) | [Shaanxi Shanqingshuixiu Information Technology Co. LTD](https://appshunter.io/developer/1437336464) |

## What reviewers say

### 鲁水防御

[App page](https://appshunter.io/ios/app/id1522237272)

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

**In-app purchases:** none


### 河长E巡

[App page](https://appshunter.io/ios/app/e/id1533613643)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 鲁水防御 free?

鲁水防御 is free to download, with no in-app purchases.

### Is 河长E巡 free?

河长E巡 is free to download, with no in-app purchases.

### Do 鲁水防御 or 河长E巡 have ads?

Neither 鲁水防御 nor 河长E巡 shows ads.

### Which is updated more often, 鲁水防御 or 河长E巡?

鲁水防御 ships an update every 2 months, and 河长E巡 every 5 weeks. Most recently, 鲁水防御 was updated on October 6, 2026 and 河长E巡 on October 5, 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.*