What is the Taiwan alert application, how does it work?

According to the introduction of NeonLight, Taiwan alert is a Weather app on the Android platform. There is currently a 2.22 version released on Oct 24, 2017, you can see the details below.

The system collects meteorological bureau and various types of open data, providing users with regard to stop classes closed, real-time earthquakes, typhoons, tsunamis, landslides and other disasters News