Six months after it was announced, the tech that Apple and Google built for sending Covid-19 exposure alerts to smartphones is finally gaining momentum in the United States.
New York and New Jersey both released Covid-19 alert apps this week, bringing the total to 10 states plus Guam that have published apps using technology from the Apple-Google partnership. Seventy million people, or 21% of the U.S. population, now have access to a Covid-19 app, according to a CNBC analysis using U.S. Census data.