# 대기오염 AirGuard K vs 인에어(inair)

The clearest difference is update cadence: 대기오염 AirGuard K at fortnightly against 인에어(inair)'s every 9 months. 대기오염 AirGuard K also leads on iOS requirement (8.0 vs 12.0). 인에어(inair)'s advantage is review sentiment (100% vs 91%). On price, ads, in-app purchases and monetization model there is nothing between them.

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

대기오염 AirGuard K ships an update fortnightly, 인에어(inair) every 9 months. The most recent releases landed on October 26, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 대기오염 AirGuard K | 인에어(inair) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/airguard-k/id896079231/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 91.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 9 months |
| Monetization | Free | Free |
| Size | 267 MB | 14 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kweather Co.,Ltd](https://appshunter.io/developer/372326743) | [한국환경공단](https://appshunter.io/developer/873915688) |

## What reviewers say

### 대기오염 AirGuard K

[App page](https://appshunter.io/ios/app/airguard-k/id896079231)

Access real-time air quality data from official sources and unique forecasts. Monitor your local air conditions, view nationwide predictions, and receive personalized alerts for pollutants. Get actionable advice for maintaining a healthy indoor and outdoor environment.

**Highlights:** Real-time air quality data, Unique air pollution forecasts, Personalized push notifications, Indoor/outdoor environment comparison, Lifestyle and learning efficiency forecasts, Broadcasts for detailed air information

**Features:** Vision Pro support

**In-app purchases:** none


### 인에어(inair)

[App page](https://appshunter.io/ios/app/inair/id1560468948)

This app provides real-time fine dust (PM-2.5) measurements from subway stations across the country. It offers hourly and 24-hour moving average data, a collaboration between environmental agencies and railway operators.

**Highlights:** Real-time PM-2.5 measurements, Subway station data, Hourly average data, 24-hour moving average data, Nationwide coverage

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 대기오염 AirGuard K free?

대기오염 AirGuard K is free to download, with no in-app purchases.

### Is 인에어(inair) free?

인에어(inair) is free to download, with no in-app purchases.

### Do 대기오염 AirGuard K or 인에어(inair) have ads?

Neither 대기오염 AirGuard K nor 인에어(inair) shows ads.

### Which is updated more often, 대기오염 AirGuard K or 인에어(inair)?

대기오염 AirGuard K ships an update fortnightly, and 인에어(inair) every 9 months. Most recently, 대기오염 AirGuard K was updated on October 26, 2026 and 인에어(inair) on October 30, 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.*