Home » BBC News - Technology » technology news » Coronavirus: The great contact-tracing apps mystery Coronavirus: The great contact-tracing apps mystery Unknown 4:37 PM BBC News - Technology technology news Germany and Switzerland are not sure how well their apps are working as the data is out of bounds. from BBC News - Technology https://ift.tt/32NxlGF Share: Facebook Twitter Google+ StumbleUpon Digg Delicious LinkedIn Reddit Technorati