A content review of COVID-19-related apps used in Vietnam.

Introduction: Various digital applications (apps) have been developed as an aid to address the novel issues caused by the Coronavirus disease 2019 (COVID-19) pandemic. Vietnam has experienced a proliferation of apps for this purpose. This review aims to evaluate all Vietnamese COVID-19 apps, analyzing their features, functionality, advantages, disadvantages, and ethical issues to inform developers, communities, and governments on the most desirable features of COVID-19 apps and the user's opinions.