The government has described the Arogya Setu App as the most important weapon to fight the corona virus. With this, more than four crore people had downloaded the Arogya Setu app in the first week. The Arogya Setu App is a contact tracing app. Not only India, but many countries are taking help of this type of app to trace the infection of coronavirus. According to a report, 60 percent of the world's population suffering from corona are using such app. Smart wristbands are also being used to track people who have been quarantined in many countries. The question is how do contact tracing apps like Arogya Setu work? Let's understand it in detail ... How do contact tracing apps work? Contact tracing is based on app location and Bluetooth. Bluetooth-based apps investigate social distancing, as Bluetooth has a range of up to 10 meters and the government has set a distance of six meters for social distancing, while in many research it has also been referred to as eight meters. Bluetooth based apps alert people when they come in contact with anyone in the range of 10 meters. Talking about location based apps, if your phone has such apps and you go to a corona infected area then the app will alert you. How Arogya Setu App Works? Now talk about the Arogya Setu App of the Government of India, this app was launched by the Government of India on April 2 and by April 18, its number of users had crossed 6.5 crore. This app is available for both Android and iOS devices. Arogya Setu App is a location based app. Let us try to understand the working of the Arogya Setu App with an example. Also Read: BSNL Extends ‘Work@Home’ Broadband Plan Until May 19 to Offer Free Internet Access HTC Desire 20 Pro launched online Vivo Y50 smartphone market launched, read details These broadband plans are the best for Work From Home