The app works best when communities adopt it together, but it’s not necessary for everyone around you to have the app installed to help slow the spread of COVID-19. Even if a relatively small percentage of a community is using the app, it can still help slow down the spread. In general, each additional person using the app increases the speed with which individuals can act on information about their exposure risk and the steps they can take to keep their communities safer.
Does everyone need to use the app for it to work?
