# Blue Map vs 空气质量发布

The clearest difference is rating: Blue Map at 5.0 against 空气质量发布's 4.2. Blue Map also leads on update cadence (every 2 weeks vs every 2 months). 空气质量发布's advantage is review sentiment (88% vs 64%) and ratings volume (13 vs 2). 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.

Blue Map holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: 空气质量发布 has 13 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 64% of Blue Map's written reviews are positive against 88% of 空气质量发布's, so the app with the better star average is not the one people write more warmly about.

Blue Map ships an update every 2 weeks, 空气质量发布 every 2 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Blue Map | 空气质量发布 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/blue-map/id838211758/reviews)** | [4.2 (13 ratings)](https://appshunter.io/ios/app/id1198499312/reviews) |
| Number of ratings | 2 | **13** |
| Positive reviews | 64.5% of reviews | **88.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 127 MB | 37 MB |
| Requires iOS | 15 | **9.0** |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [北京市朝阳区公众环境研究中心](https://appshunter.io/developer/838211761) | [中国环境监测总站](https://appshunter.io/developer/597304473) |

## What reviewers say

### Blue Map

[App page](https://appshunter.io/ios/app/blue-map/id838211758)

Access global environmental data, including air and water quality, corporate emissions, and ecological information. Participate in environmental protection by reporting pollution, sharing data, and tracking your low-carbon actions. Visualize environmental conditions with interactive maps and receive AI-driven insights and health alerts.

**Highlights:** Real-time environmental quality data, Corporate emissions and performance tracking, Public pollution reporting and action, Interactive environmental maps, AI-powered data insights, Personalized health and environmental alerts

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### 空气质量发布

[App page](https://appshunter.io/ios/app/id1198499312)

Access real-time air quality data for over 300 Chinese cities. Get detailed forecasts, pollution trends, and health guidance to stay informed about your environment.

**Highlights:** Real-time city air quality status, 5-day air quality forecasts, Pollutant trend analysis, Multi-city comparison, Official environmental data

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Blue Map free?

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

### Is 空气质量发布 free?

空气质量发布 is free to download, with no in-app purchases.

### Which has better reviews, Blue Map or 空气质量发布?

Blue Map is rated higher. Blue Map averages 5.0 out of 5 from 2 ratings, while 空气质量发布 averages 4.2 from 13 ratings.

### Do Blue Map or 空气质量发布 have ads?

Neither Blue Map nor 空气质量发布 shows ads.

### Which is updated more often, Blue Map or 空气质量发布?

Blue Map ships an update every 2 weeks, and 空气质量发布 every 2 months. Most recently, Blue Map was updated on October 24, 2026 and 空气质量发布 on October 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.*