The Germans had a similar Covid-19 tracking App....although you had to ‘volunteer’ to have it applied to your phone. It was considered a marginal success in the end because so few people signed up and the Covid-alert business simply told you that you might have been within 1.5 meters of a Covid person, but never mentioned ‘where’.
Despite the hype, iPhone security no match for NSO spyware.
https://freerepublic.com/focus/f-news/3977363/posts