# 인에어(inair) vs AirMap

The clearest difference is update cadence: AirMap at fortnightly against 인에어(inair)'s every 9 months. 인에어(inair)'s advantage is iOS requirement (12.0 vs 15.6). 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.

인에어(inair) ships an update every 9 months, AirMap fortnightly. The most recent releases landed on September 12, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | 인에어(inair) | AirMap |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 14 MB | 61 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [한국환경공단](https://appshunter.io/developer/873915688) | [Sanghak Ryu](https://appshunter.io/developer/1692492128) |

## What reviewers say

### 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


### AirMap

[App page](https://appshunter.io/ios/app/airmap/id6747370465)

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

**In-app purchases:** none


## Frequently asked questions

### Is 인에어(inair) free?

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

### Is AirMap free?

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

### Do 인에어(inair) or AirMap have ads?

Neither 인에어(inair) nor AirMap shows ads.

### Which is updated more often, 인에어(inair) or AirMap?

인에어(inair) ships an update every 9 months, and AirMap fortnightly. Most recently, 인에어(inair) was updated on September 12, 2026 and AirMap on September 24, 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.*