# 海川云 vs 现场巡检

海川云 and 现场巡检 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

海川云 ships an update every 3 months, 现场巡检 every 2 months. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 海川云 | 现场巡检 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Size | 159 MB | 269 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Changsha Haichuan Automation Co., Ltd.](https://appshunter.io/developer/1146351939) | [江江 谷](https://appshunter.io/developer/1258457093) |

## What reviewers say

### 海川云

[App page](https://appshunter.io/ios/app/id1146351940)

**In-app purchases:** none


### 现场巡检

[App page](https://appshunter.io/ios/app/id1603537810)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 海川云 free?

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

### Is 现场巡检 free?

现场巡检 is free to download, with no in-app purchases.

### Do 海川云 or 现场巡检 have ads?

Neither 海川云 nor 现场巡检 shows ads.

### Which is updated more often, 海川云 or 现场巡检?

海川云 ships an update every 3 months, and 现场巡检 every 2 months. Most recently, 海川云 was updated on October 26, 2026 and 现场巡检 on October 25, 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.*