This really doesn't make any sense to me, how could a app serve as a cure to Covid -19 . Why everything must need relate to blockchain ? Blockchain and COVID-19 pandamic are two different things . Blockchain its a technology not a cure .We can't add up these two aside . What we do need right this moment is a cure or vaccine to get rid of this harmful COVID-19 virus. In my opinion i don't feel any perfect reason of urgency for such kind of  projects .