The COVID Alert SA app, which was designed by Discovery for the National Department of Health, uses Bluetooth contact-tracing technology to let people know when they have been in contact with someone who has tested positive for COVID-19. It does this in a way that always preserves app user privacy and anonymity. “One of the critical aspects of combatting COVID-19 is the ability to detect positive cases early and to isolate as many contacts as possible. The COVID Alert SA app gives every smartphone user in South Africa the chance to understand their exposure to the virus, so that we can all protect our families and our communities, and especially those people who are most at risk of severe disease,” explains MTN SA’s executive for Corporate Affairs, Jacqui O’Sullivan.