# ESF HK AQI — ESF School AQI

> ESF School AQI (iPhone/iPad app by Andy Statham.)

- Source: https://appshunter.io/ios/app/esf-hk-aqi/id1476914155 (this page in markdown: same URL + `.md`)
- Developer: [Andy Statham](https://appshunter.io/developer/1476914154)
- Category: Education
- Price: Free
- Age rating: 4+
- Requires: iOS 10.0 · 20 MB
- Languages: English
- Released: 2019-09-03
- Data updated: 2026-05-17
- User reviews in markdown: https://appshunter.io/ios/app/esf-hk-aqi/id1476914155/reviews.md

## What is ESF HK AQI?

ESF schools air quality warning indicator and messaging app.


## Version history (last 4 releases)

### 4.0 — 2021-11-29

Add change to login screen

### 3.0 — 2020-04-07

Map Upgradation

### 2.0 — 2020-02-18

Map implementation

### 1.0 — 2019-09-03

No release notes.

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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 2026-05-17.*