# 에어코리아 vs Moonphase Setter

The clearest difference is in-app purchases: 에어코리아 at none against Moonphase Setter's 2. 에어코리아 also leads on ads (none vs shown). Moonphase Setter's advantage is update cadence (every 6 weeks vs every 4 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Moonphase Setter sells 2 in-app purchases, starting at $2.99 per month. 에어코리아 asks for nothing beyond the download.

에어코리아 ships an update every 4 months, Moonphase Setter every 6 weeks. The most recent releases landed on October 14, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | 에어코리아 | Moonphase Setter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/id873915685/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 91.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Monetization | Free | — |
| Size | 25 MB | 74 MB |
| Requires iOS | **15.6** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [한국환경공단](https://appshunter.io/developer/873915688) | [WOORAM YANG](https://appshunter.io/developer/1883501219) |

## What reviewers say

### 에어코리아

[App page](https://appshunter.io/ios/app/id873915685)

This app provides real-time air quality information, including PM2.5, PM10, and ozone levels. It also offers air quality forecasts for today, tomorrow, and the day after. Users can even check air quality directly from their Apple Watch face.

**Highlights:** Real-time air quality monitoring, PM2.5, PM10, and O3 levels, Air quality forecasts (today/tomorrow/day after), Apple Watch complication support, Official data from government sources

**Features:** macOS Compatibility

**In-app purchases:** none


### Moonphase Setter

[App page](https://appshunter.io/ios/app/moonphase-setter-watch-sync/id6760901351)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly Membership | $2.99 | per month |
| Premium Yearly Membership | $29.99 | per year |


## Frequently asked questions

### Is 에어코리아 free?

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

### Is Moonphase Setter free?

Moonphase Setter is free to download, with in-app purchases available.

### Do 에어코리아 or Moonphase Setter have ads?

Moonphase Setter shows ads; 에어코리아 does not.

### Which is updated more often, 에어코리아 or Moonphase Setter?

에어코리아 ships an update every 4 months, and Moonphase Setter every 6 weeks. Most recently, 에어코리아 was updated on October 14, 2026 and Moonphase Setter on October 3, 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.*