# 行動水情 vs 環境即時通

The clearest difference is update cadence: 行動水情 at every 11 days against 環境即時通's every 6 weeks. 環境即時通's advantage is iOS requirement (12.1 vs 16.0). 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.

行動水情 ships an update every 11 days, 環境即時通 every 6 weeks. The most recent releases landed on September 23, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | 行動水情 | 環境即時通 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.6 (7 ratings)](https://appshunter.io/ios/app/id585493633/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 6 weeks |
| Monetization | — | Free |
| Size | 109 MB | 85 MB |
| Requires iOS | 16.0 | **12.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [SanChuanCloud](https://appshunter.io/developer/1761292478) | [Environmental Protection Administration, Executive Yuan R.O.C. Taiwan](https://appshunter.io/developer/553766923) |

## What reviewers say

### 行動水情

[App page](https://appshunter.io/ios/app/id487536302)

**Features:** Vision Pro support

**In-app purchases:** none


### 環境即時通

[App page](https://appshunter.io/ios/app/id585493633)

Access real-time environmental data including air quality, UV index, weather, river water quality, and disaster alerts. Customize alerts for your favorite locations and share air quality observations.

**Highlights:** Real-time air quality monitoring, UV index and weather forecasts, River water quality data, Flood and debris flow alerts, Customizable location alerts, Air quality mood sharing

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 行動水情 free?

行動水情 is free to download, with no in-app purchases.

### Is 環境即時通 free?

環境即時通 is free to download, with no in-app purchases.

### Do 行動水情 or 環境即時通 have ads?

Neither 行動水情 nor 環境即時通 shows ads.

### Which is updated more often, 行動水情 or 環境即時通?

行動水情 ships an update every 11 days, and 環境即時通 every 6 weeks. Most recently, 行動水情 was updated on September 23, 2026 and 環境即時通 on October 1, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*