# AQ Alert — Hyper-local air quality alerts

> Hyper-local air quality alerts (iPhone/iPad app by Andrew Crichton.)

- Source: https://appshunter.io/ios/app/aq-alert/id6740590818 (this page in markdown: same URL + `.md`)
- Developer: [Andrew Crichton](https://appshunter.io/developer/1790748164)
- Category: Weather, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 13.4 · 40 MB
- Languages: American English
- Released: 2025-02-05
- Data updated: 2026-08-07
- User reviews in markdown: https://appshunter.io/ios/app/aq-alert/id6740590818/reviews.md

## What is AQ Alert?

Locate Purple Air sensors important to you, and add them to your watch list. Once a sensor is in your watch list, you can set alerts and receive push messages when air quality reported by the sensor crosses key thresholds, or get notified when a sensor goes offline.

The Purple Air "community scientist" sensor network provides data about air quality to researchers and the public. Using AQ Alert, you can stay updated without checking the Purple Air map.

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| 1 Sensor Monitoring | $0.99 | per month |
| 2 Sensor Monitoring | $1.89 | per month |
| 5 Sensor Monitoring | $4.49 | per month |
| 10 Sensor Monitoring | $8.49 | per month |



## Version history (last 1 release)

### 1.1.3 — 2025-02-05

No release notes.

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## Related topics

[cricton](https://appshunter.io/ios/topics/cricton)

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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 2026-08-07.*