COVID-19 Symptom Study App
Millions of participants have downloaded the app and are using it to regularly report on their health, making it the largest public science project of its kind anywhere in the world. App data is being analysed in collaboration with King's College London researchers. By using this app you're helping the NHS and contributing to advance vital research on COVID-19.
App developed by King’s College London and health science company ZOE, and endorsed by the Welsh Government, NHS Wales, the Scottish Government and NHS Scotland.
By combining your reports with software algorithms, we are able to predict who has the virus and so track COVID infections across the UK and now other countries (see COVID Data). Your daily reporting is also being used to generate new scientific understanding of the very different symptoms the virus causes in different people. We are also studying the way that risks vary between individuals because of their own personal characteristics.↑ Back to top