The primary purpose of the Aarogya Setu app when it was launched was to act as a COVID-19 contact tracing, syndromic mapping, and self-assessment digital service. It used Bluetooth and GPS data to:
Alert Users: Inform a user if they had been in close proximity to a person who tested positive for COVID-19.
Self-Assess: Allow citizens to self-diagnose their symptoms and assess their risk level.
Containment: Help the government identify potential COVID-19 hotspots and provide relevant advisories and essential health services.