A pointless exercise as you can install it but not use it, they are simply driving away trade for no good reason.
Hmmm. I’m slightly puzzled as to why anyone would install such an app and then not use it. Unless, of course, they wanted to try and pull the wool over someone’s eyes simply to get into a pub by showing them the app icon and saying “I’ve got the app - mine’s a lager”.
Easier just to use it, surely.