AirVisual App ← Knowledge Base Why is my AQI different in the AirVisual app between 2 phones? What is the red notification on the AirVisual app icon? My iOS widget doesn't display data How to remove or move a location/station in the AirVisual app? Android APK app installation permissions How to change the language of your App How can I use the AirVisual app’s widget on my phone? How can I access air quality forecasts through the AirVisual app and website? Where can I see when a location's data last updated?