Seems to me that responsible pubs and restaurants have admirably taken up the slack in hmgov's abysmal failure to provide a credible app. Yesterday myself and 2 friends visited two pubs, The Joker and The King & Queen, before having lunch at Casa Don Carlos in The Lanes. At each, we were invited...
It's an app, right? You can install it for the short term for altruistic reasons for the common good. Then uninstall it as and when you see fit. Or not install it at all. People banging on about privacy issues don't think hmgov and its agencies aren't already monitoring exactly what they want to...