https://techcrunch.com/2020/04/09/covid-19-symptom-self-reporting-app-from-startup-zoe-and-academic-partners-expands-to-the-u-s/

If you want to contribute to efforts to better understand and contain the COVID-19 pandemic, and you’re based in the U.S., you can do a lot with very little effort by downloading a free iOS and Google Play application called simply ‘COVID Symptom Tracker.’ The app was originally developed in partnership with food science startup Zoe, and released first in the U.K., and was quickly downloaded by nearly one million people in its first day of availability.

The app aims to supplement information provided by testing programs and other public measures of the spread of the coronavirus using self-reported information provided by individuals. It includes a self-reporting quiz that takes roughly one minute per day to complete, and also provides an estimated picture of the potential spread of the virus in your immediate area.