TraceTogether adopts a community-driven approach to combat the spread of COVID-19.
When phones with TraceTogether installed are nearby one another, they exchange anonymised proximity information using Bluetooth. This information is stored securely on the phone, and only shared with the Ministry of Health (MOH) if a user tests positive for COVID-19. Also, the Bluetooth information stored on the phones after 25 days is automatically deleted.
The app will cease functionality at the end of the outbreak.