On 2nd April 2020, India launched Aarogya Setu mobile App for helping augment the efforts of limiting the spread of COVID19, with an objective of enabling Bluetooth based contact tracing, mapping of likely hotspots and dissemination of relevant information about COVID19. The App has over 114 million users as on 26th May, which is more than any other Contact Tracing App in the world. The App is available in 12 languages and on Android, iOS and KaiOS platforms. Citizens across the country are using Aarogya Setu to protect themselves, their loved ones and the nation. Many youngsters also call Setu as their Bodyguard. Setu have been transparency, privacy and security and in line with India’s policy on Open Source Software, the source code of Aarogya Setu has now been made open source. The source code for the Android version of the application is available for review and collaboration at https://github.com/nic-delhi/AarogyaSetu_Android.git.The iOS version of the application will be released as open source within the next two weeks and the server code will be released subsequently. Almost 98% of Aarogya Setu Users are on Android platform.
