# Air Quality CN vs AirPro AQI

The clearest difference is in-app purchases: AirPro AQI at none against Air Quality CN's 3. AirPro AQI also leads on update cadence (monthly vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Air Quality CN sells 3 one-off in-app purchases. AirPro AQI asks for nothing beyond the download.

Air Quality CN ships an update every 4 months, AirPro AQI monthly. The most recent releases landed on October 13, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Air Quality CN | AirPro AQI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/airpro-aqi/id6445855953/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | — | Free |
| Size | 12 MB | 13 MB |
| Requires iOS | 17.0 | **16.1** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [春晖 王](https://appshunter.io/developer/972349380) | [Paul Dorsey](https://appshunter.io/developer/1240620211) |

## What reviewers say

### Air Quality CN

[App page](https://appshunter.io/ios/app/air-quality-cn/id976991402)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy Me a Coffee (Small) | $0.99 | one-time |
| Buy Me a Coffee (Medium) | $2.99 | one-time |
| Buy Me a Coffee (Large) | $4.99 | one-time |


### AirPro AQI

[App page](https://appshunter.io/ios/app/airpro-aqi/id6445855953)

This application connects to AirPro hardware to measure and track various particle sizes in the air. It provides detailed air quality data for users concerned about their environment.

**Highlights:** Measures 1um, 2um, 5um, 10um particles, Tracks air quality data, Connects to AirPro hardware, Provides detailed air quality readings

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

**In-app purchases:** none


## Frequently asked questions

### Is Air Quality CN free?

Air Quality CN is free to download, with in-app purchases available.

### Is AirPro AQI free?

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

### Do Air Quality CN or AirPro AQI have ads?

Neither Air Quality CN nor AirPro AQI shows ads.

### Which is updated more often, Air Quality CN or AirPro AQI?

Air Quality CN ships an update every 4 months, and AirPro AQI monthly. Most recently, Air Quality CN was updated on October 13, 2026 and AirPro AQI on September 17, 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.*