SINGAPORE—As governments around the world race to roll out contact-tracing phone apps to fight the coronavirus pandemic, an early experiment in Singapore faces a big hurdle: getting people to sign up.
The government-developed app, called TraceTogether, is designed to help authorities identify people with whom a coronavirus patient has been in close contact. Those people, if found quickly, could be isolated before they pass the virus on to others, breaking the chain of transmission.
…
