I’ve downloaded this app which has been developed at Guy’s and St Thomas’ as a way of trying to assess the spread of the virus to support the health service planners. UK only.
Seemed to me like a helpful tool.
“Help slow the spread of #COVID19 and identify at risk cases sooner by self-reporting your symptoms daily, even if you feel well 🙏🏼.“ Download the app covid.joinzoe.com/