During August 2020, the NHS COVID-19 app was trialled by invited users, including people on the Isle of Wight, NHS Volunteer Responders and people who live in the London Borough of Newham.

The trial tested how well the app worked, provided user feedback about the app, and also included a Clinical Investigation to support the medical claims made by the device. The Investigation was approved by the MHRA (Medicines and Healthcare products Regulatory Agency) and the Derby Research Ethics Committee. By downloading the app and accepting the terms of use, users were automatically part of the Clinical Investigation.

The clinical investigation was conducted to assess the medical feature of the app i.e. the symptom checker. The symptom checker was used effectively by the users who participated in the clinical investigation. There were no adverse incidents reported during this clinical investigation and the medical feature was found to perform well.

The trial showed us that the app is accurate, responsive and has received positive feedback from users.