# 行動水情 vs 中央氣象署E

The clearest difference is update cadence: 行動水情 at every 11 days against 中央氣象署E's every 5 weeks. 中央氣象署E's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 16.0). On price, 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.

行動水情 ships an update every 11 days, 中央氣象署E every 5 weeks. The most recent releases landed on September 23, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | 行動水情 | 中央氣象署E |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.6 (5 ratings)](https://appshunter.io/ios/app/e/id1124906287/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 18.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 5 weeks |
| Monetization | — | Free |
| Size | 109 MB | 36 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [SanChuanCloud](https://appshunter.io/developer/1761292478) | [中華民國交通部中央氣象局地震測報中心](https://appshunter.io/developer/1124906286) |

## What reviewers say

### 行動水情

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

**Features:** Vision Pro support

**In-app purchases:** none


### 中央氣象署E

[App page](https://appshunter.io/ios/app/e/id1124906287)

Receive real-time earthquake and tsunami alerts directly on your mobile device. This app provides immediate notifications for strong earthquakes, significant seismic events, and tsunami warnings, helping you respond faster to natural disasters. It also offers historical data and 3D visualizations of seismic activity.

**Highlights:** Real-time strong earthquake alerts, Significant earthquake reports, Tsunami information push notifications, Historical earthquake data query, Global earthquake and Pacific tsunami search, 3D earthquake activity visualization

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

**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 中央氣象署E free?

中央氣象署E is free to download, with no in-app purchases.

### Do 行動水情 or 中央氣象署E have ads?

Neither 行動水情 nor 中央氣象署E shows ads.

### Which is updated more often, 行動水情 or 中央氣象署E?

行動水情 ships an update every 11 days, and 中央氣象署E every 5 weeks. Most recently, 行動水情 was updated on September 23, 2026 and 中央氣象署E on October 7, 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.*