 "Aarogya Setu app")
The Indian government-endorsed contact tracing Aarogya Setu was found to be the most popular in its space globally, with 50 million downloads, but the efficacy and privacy of contact tracing globally is questionable, according to Internet research firm Top10VPN.
The firm found contact tracing apps in 23 countries, with many more scheduled to be rolled out in the coming weeks.
In India, as many as 16 such apps were found, developed either by states, private companies or in public-private partnership. Apart from Aarogya Setu, the governments of Arunanchal Pradesh, Punjab, Chhatisgarh, Goa, Karnataka, Himachal Pradesh, Maharashtra, Odisha, Gujarat (Surat), Tamil Nadu,
