About
This app provides real-time 1-hour PSI readings for Singapore, helping users understand current haze levels. It uses NEA's formula to convert PM2.5 concentration into a 0-500 scale and offers hourly push notifications for timely updates.
What's New in Hazel
1.0
October 25, 2015
This app has been updated by Apple to display the Apple Watch app icon.
Developer apps
FAQ
What is Hazel's current PSI reading?
Hazel provides real-time 1-hour PSI readings for Singapore, calculated using the NEA's formula for PM2.5 concentration. The app displays this on a scale from 0-500 to indicate haze severity.
How does Hazel calculate PSI?
Hazel utilizes a formula provided by the NEA to convert the concentration of PM2.5 pollutants into a PSI (Pollutant Standards Index) scale ranging from 0 to 500.
Does Hazel offer updates on haze levels?
Yes, Hazel sends hourly push notifications to keep users informed about the latest 1-hour PSI readings as soon as NEA releases the data.
Is Hazel available on Android devices?
Hazel is currently supported on iPhone and iPad devices. It is not available for Android at this time.
What is the age rating for Hazel?
Hazel has an age rating of 4+, making it suitable for a wide range of users concerned about air quality.
How often is Hazel updated?
Hazel was last updated on October 25, 2015, with version 1.0. Further update frequency is not specified.
What do users like about Hazel?
Based on its rating of 5.0 stars from 1 rating, users likely appreciate its direct and timely information regarding Singapore's haze conditions.
Does Hazel have ads?
No, Hazel is an ad-free application. Users can access all its features without encountering advertisements.
