UK App to track the spread, worth a look

[Crimples]

Seen a few mentions of this, you enter a daily status whether symptomatic or not.
Anything we can do to help scientists get a better handle on the numbers the better, Right? apps.apple.com/gb/app/covid-symptom-tracker/id1503529611

Bumping for traffic, mentioned on another thread as well.
Apparently channel four talked about it too