COVID Alert SA is a free Android app that allows users to slow the spread of COVID-19 in South Africa while keeping their identity private. Developed by the Department of Health, it is part of COVIDConnect, the digital COVID-19 response platform. The app uses Bluetooth signals to exchange random codes with other app users when they come in close proximity to each other, allowing for contact tracing to be done more thoroughly and easily. If a user tests positive for COVID-19, they can choose to mark themselves as positive in the app and the devices of other app users who have been in close contact with them will receive a notification of potential exposure. The app also provides information on how to manage COVID-19 symptoms and limit the spread of the disease to others. Overall, COVID Alert SA is a powerful tool for joining a community of people working together to stay safe and save lives in South Africa.