ABSTRACT
Many applications and websites to fight the Covid-19 pandemic have been created and developed in recent months by both official institutions and commercial or private initiatives. A large number of projects that use technologies such as geolocation, geopositioning, geofencing, tracking, and registration of contacts through Bluetooth have arisen, generating a huge amount of data. By using big data techniques, geographic information systems (GIS), and artificial intelligence, information has been produced for health institutions and society itself, helping to address the health crisis more efficiently. This article describes, analyzes, and offers a systematized review of a significant sample of websites and applications recently implemented successfully or under development by public and private institutions. We searched the available scholarly literature, as well as news from the main newspapers, websites, and digital media specialized in technology. The article concludes with a description of the best and most efficient practices found, relating then to the right to privacy and personal data protection.