Healthcare Here come COVID-19 tracing apps and privacy tradeoffs Updated : May 05, 2020 03:52 PM IST “If we can find a way to automate some of the detective work with technology, I think that would be a significant help,” said Nadia Abuelezam, a disease researcher at Boston College. In the US, developers are pitching their apps directly to state and local governments. Most coronavirus-tracking apps rely on Bluetooth, a decades-old short-range wireless technology, to locate other phones nearby that are running the same app. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.