Best Air Quality App! Real-time PM2.5 · Fine Dust · Weather alerts. (Korea only)
About Close Window- Air Quality App
Close Window- Air Quality App is a weather app developed by CrazyCat Lab..
Download Statistics
Close Window- Air Quality App has been downloaded 71 times. In the last 30 days, the app was downloaded 1 times.
User Ratings
The app has no ratings yet.
App Information
Close Window- Air Quality App is FREE to download. The APK download size is 26.42 MB. The latest version available is 1.0.10. The last update was on April 7, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on Google Play November 2025.
Description
** Currently supports Korea only **
🌬️ Close Window - Smart Indoor Air Management
Wondering when to open or close your windows? Close Window tells you the optimal time based on real-time air quality and weather data.
[Key Features]
1. Real-time Air Quality Monitoring - Check PM10, PM2.5, ozone and other air pollutants in real-time - Official data from Korea Environment Corporation (AirKorea) - Color-coded air quality levels for instant recognition
2. Accurate Weather Information - Reliable weather forecasts via Korea Meteorological Administration API - Detailed data: temperature, humidity, precipitation, wind speed - Hourly and daily forecasts for planning ahead
3. Smart Window Guide - Window opening/closing recommendations based on air quality and weather analysis - Intuitive messages: "Safe to open windows", "Keep windows closed" - Personalized advice considering yellow dust, fine dust, and rain
4. Convenient Location Management - Automatic GPS location detection for instant local info - Save favorite locations: home, office, and more - Nationwide coverage including all major cities and regions
5. Customized Alert Service - Instant push notifications when air quality worsens - Scheduled alerts at user-defined times - Notifications for significant weather changes
[Recommended For]
- Those hesitant to open windows due to fine dust concerns - People interested in indoor air quality management - Those with allergies or respiratory conditions sensitive to air quality - Families with children or elderly members concerned about indoor environment - Anyone wanting to check weather before hanging laundry or bedding
[Privacy Protection] - Location data used only temporarily for weather and air quality information - Personal data stored only on device - No unnecessary permission requests, only essential features
[Supported Environments] - All Android 5.0+ devices - Air quality and weather information for all regions in Korea - Offline access to last cached data
Create a healthier, more comfortable indoor environment with Close Window. Protect your family's health with one simple app.
Download now and start smart air management!
# Data Sources • Air Quality Data: Korea Environment Corporation AirKorea (https://www.airkorea.or.kr) • Weather Data: Korea Meteorological Administration (https://data.kma.go.kr) • Public Data: Korea Public Data Portal (https://www.data.go.kr)
⚠️ Disclaimer This app does not represent any government agency. It is a privately developed app utilizing public Open API data.
Recent changes: • Other stability improvements and bug fixes
Get a detailed PDF report for Close Window- Air Quality App with download trends, rating history,
and key performance statistics — useful for competitive research or tracking your own app.
Learn more
Are you the developer of this app? Join us for free to see more information about your app and learn how we can help you promote and earn money with your app.
Each subscription will automatically renew 3 days before the expiration date for
the same time period. Subscriptions can be cancelled at any time before the renewal.
