Singapore Rules Out Apple, Google’s Contact-Tracing System (1)

Singapore said it won’t use a contact-tracing system jointly developed by Apple Inc. and Google to fight the coronavirus, opting instead for its own domestic technology.

The city-state becomes one of the first countries to officially rule out the Apple-Google software called Exposure Notification, which the Silicon Valley rivals unveiled in April in a rare collaboration. The system, which runs on iPhones and Android smartphones, enables users who test positive for Covid-19 to flag that data so others who they came into contact with over the previous few days can be notified.

After studying the technology, Singapore officials decided ...