白
As the global epidemic continues to heat up, it's convenient to have an app that can test yourself for COVID-19, and it doesn't cost anything. The operation of this app is also easy to understand, the screen is simple style. It is very comfortable to use.
tinghan ko
This app is made for get the data of cough, in other word, the data is budling by our downloaded and data transmitted. I hope my action as noted above can support the database building faster, and help other people one day.