As per the research estimate, the NHS contact tracing app support to prevention 1000 of cases of the disease and thousands of death. As per the average, each case has consented to find their contact with the help of a mobile app and prevent one new case.
The journal nature well accepts this research, and some other research was involved in creating an NHS tracking app. It has released some of the estimated data about the patient. When it is included in nature, it means the paper is peer-reviewed...