Despite promise, few in US adopting COVID-19 exposure apps

RALEIGH, N.C. (AP) — Six months ago, Apple and Google introduced a new smartphone tool designed to notify people who might have been exposed to the coronavirus, without disclosing any personal information. But for the most part, Americans haven't been all that interested.

Fewer than half of U.S. states and territories — 18 in total — have made such technology widely available. And according to a data analysis by The Associated Press, the vast majority of Americans in such locations haven't activated the tool.

Data from 16 states, Guam and the District of Columbia shows that 8.1 million people had utilized the technology as of late November. That's about one in 14 of the 110 million residents in those regions.

In theory, such apps could bolster one of the most difficult tasks in pandemic control: Tracing the contacts of people infected with the coronavirus in order to test and isolate them if necessary. In practice, however, widespread COVID-19 misinformation, the complexity of the technology, overwhelmed health workers needed to quickly confirm a diagnosis, and a general lack of awareness have all presented obstacles, experts and users say.

“There’s a lot of things working against it,” said Jessica Vitak, an associate professor at the University of Maryland’s College of Information Studies. “Unfortunately, in the U.S., COVID has been politicized far more than in any other country. I think that’s affecting people’s willingness to use tools to track it.”

Charlotte, North Carolina, lawyer Evan Metaxatos was thrilled to learn in November about his state’s tracking app, called SlowCOVIDNC. He immediately downloaded it and got his parents and pregnant wife to follow suit.

But they're still outliers in the state, which launched the app in September with little fanfare. Of roughly 10.5 million state...