Hi there - sounds great! My WhatsApp number is Tom Valcke 852 5406 1623 ... let me know what/when and I hope to be able to join you soon.
Re: the online app, this might be two dumb questions in a row, but what can I say:
(1) Do they play on-line, or just use the on-line app to get a game going and then they physically meet somewhere and play?
(2) To "chime in," I would need the name of the app, no?