Contact tracing app tells Pennsylvanians if they’ve been exposed to coronavirus The Philadelphia InquirerState launches pilot COVID-19 notification app NJ Spotlight NewsNHS launches COVID-19 app, Exposure Notifications now supported in England and Wales 9to5Mac50000 residents download Pennsylvania's covid app in 24 hours TribLIVECOVID Alert PA app is secure, state officials say FOX43View Full Coverage on Google News