"TCL
// you are comparing two apps designed to undertake completely different tasks. //
No I am not.
I mention the corona App to TTT because we have talked about it before."
They are completely different so the failure of one is no guide to the prospects of one with simpler tasks.
"Combined with the fact that it is not going to make anyone any money, no one is going to waste their time and effort developing it. "
Really? Why have these apps been developed and in use?
https://www.morningadvertiser.co.uk/Article/2020/06/11/What-apps-can-I-get-to-help-with-ordering-in-my-pub
"But you both seem to think this software appears very quickly by magic and is easy and infallible.
It isn’t. "
Where have made any of those claims?