app problem

COVID-19 apps include mobile-software applications for digital contact-tracing - i.e. the process of identifying persons ("contacts") who may have been in contact with an infected individual - deployed during the COVID-19 pandemic.Numerous tracing applications have been developed or proposed, with official government support in some territories and jurisdictions. Several frameworks for building contact-tracing apps have been developed. Privacy concerns have been raised, especially about systems that are based on tracking the geographical location of app users.
Less overtly intrusive alternatives include the co-option of Bluetooth signals to log a user's proximity to other cellphones. (Bluetooth technology has form in tracking cell-phones' locations.)
On 10 April 2020, Google and Apple jointly announced that they would integrate functionality to support such Bluetooth-based apps directly into their Android and iOS operating systems. India's COVID-19 tracking app Aarogya Setu became the world's fastest growing application - beating Pokémon Go - with 50 million users in the first 13 days of its release.

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