# 行動水情 vs KNY地震速報

The clearest difference is ads: 行動水情 at none against KNY地震速報's shown. On price, update cadence, 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, KNY地震速報 weekly. The most recent releases landed on September 23, 2026 and September 6, 2026 respectively.

## The numbers

| Metric | 行動水情 | KNY地震速報 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (8 ratings)](https://appshunter.io/ios/app/kny/id6503194936/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | — | 56.9% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 11 days | **Weekly** |
| Monetization | — | Ad-supported |
| Size | 109 MB | 37 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [SanChuanCloud](https://appshunter.io/developer/1761292478) | [KNY CORPORATION](https://appshunter.io/developer/467005230) |

## What reviewers say

### 行動水情

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

**Features:** Vision Pro support

**In-app purchases:** none


### KNY地震速報

[App page](https://appshunter.io/ios/app/kny/id6503194936)

This app provides exclusive countdown earthquake alerts, notifying you seconds to tens of seconds before seismic waves arrive. It aims to give you crucial time for disaster preparedness and response.

**Highlights:** Exclusive countdown alerts, Rapid earthquake notification, Pre-warning time for response, Disaster preparedness tool, User-friendly interface

**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 KNY地震速報 free?

KNY地震速報 is free to download, with no in-app purchases.

### Do 行動水情 or KNY地震速報 have ads?

KNY地震速報 shows ads; 行動水情 does not.

### Which is updated more often, 行動水情 or KNY地震速報?

行動水情 ships an update every 11 days, and KNY地震速報 weekly. Most recently, 行動水情 was updated on September 23, 2026 and KNY地震速報 on September 6, 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.*