I'm a Radge Donator
the answer to your question depends on how much you value life and I would like to think enough of us do to make it work.So, let me get this right. If you download this app you may one night when you are siting in watching the TV get some random phoning you up to say our records show that you have been in contact with someone (when and how ?) who has tested positive for Covid-19....so please stay in your house and don't go out at all for the next fortnight. Do they really think this is going to work ?