# 홍수알리미 vs 항공날씨

The clearest difference is review sentiment: 홍수알리미 at 94% against 항공날씨's 55%. 홍수알리미 also leads on iOS requirement (9.0 vs 17.0). 항공날씨's advantage is update cadence (every 2 months vs every 5 months). 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.

홍수알리미 ships an update every 5 months, 항공날씨 every 2 months. The most recent releases landed on September 24, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | 홍수알리미 | 항공날씨 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **94.0% of reviews** | 54.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Size | 3 MB | 82 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [한강홍수통제소](https://appshunter.io/developer/578871388) | [항공기상청](https://appshunter.io/developer/633395231) |

## What reviewers say

### 홍수알리미

[App page](https://appshunter.io/ios/app/id946789489)

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

**In-app purchases:** none


### 항공날씨

[App page](https://appshunter.io/ios/app/id6444932886)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 홍수알리미 free?

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

### Is 항공날씨 free?

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

### Do 홍수알리미 or 항공날씨 have ads?

Neither 홍수알리미 nor 항공날씨 shows ads.

### Which is updated more often, 홍수알리미 or 항공날씨?

홍수알리미 ships an update every 5 months, and 항공날씨 every 2 months. Most recently, 홍수알리미 was updated on September 24, 2026 and 항공날씨 on September 23, 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.*