# Air Quality Alert: Outdoor

> PM2.5 score tuned to family

Canonical page: [https://chrome-stats.com/d/id6771139805](https://chrome-stats.com/d/id6771139805)

## Overview

- **ID:** `id6771139805`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** SiU Ahn
- **Category:** Weather
- **Version:** 1.0.3
- **Last updated:** 2026-06-14
- **First published:** 2026-05-22
- **Size:** 34 MB
- **Data as of:** 2026-09-22
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/air-quality-alert-outdoor/id6771139805)
- **Website:** [https://www.reactiveworks.dev](https://www.reactiveworks.dev/)
- **Privacy policy:** [https://reactiveworks.blogspot.com/2026/05/air-quality-bar-privacy-policy.html](https://reactiveworks.blogspot.com/2026/05/air-quality-bar-privacy-policy.html)

## Description

Is it safe to head outside today? PM2.5, PM10, and ozone become a 0–100 outdoor score tuned to each family member — with a four-step color band you can read at a glance.

Raw PM2.5 numbers rarely answer the question you actually have: "Is it okay to go out right now — with my kid, with my parents, with the dog?" Air Quality Alert turns PM2.5, PM10, and ozone readings into a single 0–100 outdoor score tuned to whoever you're heading out with. One number, one color, decision made.

■ Outdoor score — intuitive, not just a number

We weigh PM2.5 (0.5), PM10 (0.3), and ozone (0.2) against your family's thresholds. At the threshold you'll see 50 (the boundary between "go" and "stay"); double the threshold reads as 0. So "75 today, light walk is fine" becomes a natural call. The score is paired with a four-step color band — Good / Moderate / Bad / Very Bad — so you can read it at a glance, even from a notification.

■ Five family profiles

The same pollutant load affects people differently. The app keeps five profiles, each with its own thresholds:

· Adult — standard reference
· Kid — stricter, more cautious calls
· Pregnant — sensitive-group thresholds
· Elderly — sensitive-group thresholds
· Pet — quick read for walks

Switch profiles with one tap at the top of the home screen.

■ Hourly trend and tomorrow's forecast

PM2.5 and PM10 are plotted hourly so you can see whether the air is getting cleaner or worse. When forecast data is available, the app surfaces tomorrow's best window — "afternoon onward looks best" — so you can plan ahead.

■ Threshold push alerts

Set a PM2.5 threshold; we push when it gets crossed. No need to open the app right before stepping out.

■ Automatic station match

Allow location once, and the app finds the nearest air-quality station for you. Want to check another city? Search and pin any station by name.

■ Data source

Powered by the global station network aggregated by the World Air Quality Index (WAQI) project — the same view works whether you're at home or traveling.

■ Privacy

No sign-up. Profiles, thresholds, and pinned stations live entirely on your device. Location is used only to find the nearest station and is never stored.

Built for the small moment every morning when you crack the window open and wonder whether to grab a mask. Use it on whatever family standard fits today, and step out with one less thing to second-guess.

## Rankings

- #2,010,491 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6771139805)