# Taiwan Air Quality Index(AQI) — AQI for Taiwan

> Taiwan Air Quality Index (AQI) and weather forecast app. (iPhone/iPad app by Tzu-Chao Chao.)

- Source: https://appshunter.io/ios/app/taiwan-air-quality-indexaqi/id1351673955 (this page in markdown: same URL + `.md`)
- Developer: [Tzu-Chao Chao](https://appshunter.io/developer/1123912319)
- Category: Weather, Lifestyle
- Price: Free
- Age rating: 4+
- Requires: iOS 13.0 · 14 MB
- Languages: American English, Chinese (Simplified, China), Chinese (Traditional, Taiwan)
- Released: 2018-03-12
- Data updated: 2026-08-02
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/taiwan-air-quality-indexaqi/id1351673955/reviews.md

## What is Taiwan Air Quality Index(AQI)?

You can get Air Quality Index(AQI) information of Taiwan from the app, and let you prepare for the prevention of the air pollution early.

Today Widget - When you turn on location or add any favorite sites, you can get AQI information immediately.

Provide three days weather forecast of counties in Taiwan, include temperature, humidity and probability of precipitation.

Air quality index based on monitoring data will be on the same day in the air ozone(O3), suspended fine particles(PM2.5), suspended particles(PM10), carbon monoxide(CO), sulfur dioxide(SO2) and II Nitric oxide(NO2) such as the concentration of value, its impact on human health, were converted into different pollutants The vice-value targets, indicators, deputy to the day of the maximum value of the stations on the day of the air quality index (AQI).

AQI Information from data.epa.gov.tw.  The latest data depend on this website.

Feel free to leave any comments to me, I appreciate it.

Note: Continued use of GPS running in the background can dramatically decrease battery life.

## Key features

- Real-time AQI information for Taiwan
- Today Widget for immediate AQI access
- Three-day weather forecasts
- Detailed pollutant concentration data
- Health impact assessments
- Location-based AQI monitoring

## Recent user reviews (10 of 34)

All indexed reviews: https://appshunter.io/ios/app/taiwan-air-quality-indexaqi/id1351673955/reviews.md

### 5/5 — 容易使用

*2025-10-11, version 3.4.2*

建議可以增加色盲者、色弱者友善的配色。

### 5/5 — 主畫面的小工具功能不見了😭

*2025-03-14, version 3.4.2*

介面跟資訊都很清楚好看，已經習慣隨時確認所在區域的空品了～
但主畫面的小工具功能不知為何不見了，希望能快點回來🥹

### 5/5 — 小工具

*2024-12-04, version 3.4.0*

希望可以新增 桌面小工具 的功能🙏

### 5/5 — 簡單易用

*2024-12-03, version 3.4.0*

想許願可以設定預報通知僅顯示自己所在縣市的資訊就好，以及桌面小工具顯示某自選城市的AQI。

### 5/5 — 小工具

*2024-12-02, version 3.4.0*

請問會有桌面小工具嗎～～

### 5/5 — 介面很漂亮

*2024-07-28, version 3.4.0*

希望臭氧等細項也有良好/普通/不健康的顏色辨別

### 4/5 — 差一點完美

*2023-12-11, version 3.3.3*

UI好看，UX簡單易操作。AQI資訊即時正確，但氣溫資訊卻可以跟中央氣象局相差4度，推測為資料更新頻率低來不及反應真實溫度所致。希望更新能加上對於iOS widgets 的支援🥹

### 5/5 — 字體能調整就更好了

*2023-10-19, version 3.3.3*

字體能調整就更好了

### 5/5 — 介面很美

*2022-11-18, version 3.3.2*

很少評論APP，身處的城市空污，看這介面會讓人想深呼吸～。可以更換icon的功能有很棒。

### 4/5 — 字太小

*2022-11-10, version 3.3.2*

字體太小

## Frequently asked questions about Taiwan Air Quality Index(AQI)

### What does the Taiwan Air Quality Index (AQI) app do?

This app provides real-time Air Quality Index (AQI) information for Taiwan, allowing users to prepare for air pollution. It also offers three-day weather forecasts, including temperature, humidity, and precipitation probability for various counties in Taiwan.

### What kind of air quality data does the app provide?

The app uses monitoring data from data.epa.gov.tw to display concentrations of pollutants like O3, PM2.5, PM10, CO, SO2, and NO2. It converts this data into an AQI value and assesses its impact on human health.

### Is the app free to use?

Yes, the app is free to use. However, it does display advertisements. There are no in-app purchases or subscription fees associated with its core functionality.

### What are the key features of this app?

Key features include real-time AQI information, a Today Widget for quick access to AQI data, three-day weather forecasts with detailed metrics, and comprehensive pollutant concentration data with health impact assessments.

### How is the AQI data obtained?

The air quality index data is sourced from data.epa.gov.tw, which is the official source for monitoring data in Taiwan. The app relies on this website for the latest and most accurate information.

## Version history (last 5 releases)

### 3.4.2 — 2025-03-14

- Fixed bugs

### 3.4.1 — 2025-01-22

- Fixed Weather Forecast issue
- Fixed bugs

### 3.4.0 — 2024-05-19

- [New] AQI Ranking Page
- added AQI detail page swipe gesture 
- [New] Larger Map pin setting
- Fixed bugs

### 3.3.4 — 2023-12-24

- Fix some bugs
- Data source adjustment

### 3.3.3 — 2023-01-28

- Fix some bugs

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## More apps by Tzu-Chao Chao

- [BMI&BMR Calculator](https://appshunter.io/ios/app/bmi-and-bmr-calculator/id1123912320)

All apps by Tzu-Chao Chao: https://appshunter.io/developer/1123912319

## Related topics

[taiwan weather cwa](https://appshunter.io/ios/topics/taiwan-weather-cwa) · [air quality index aqi](https://appshunter.io/ios/topics/air-quality-index-aqi)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-02.*