Don't waste your time. I went through 3 different brands from Amazon when I got my 560 in January, plus the Thermoworks probes I already had. They're proprietary in some manner, whether the polarity is reversed or something else.
Just remember, each time you open a lid or door to the grill, if you're using the app, you MUST press the connect button at the bottom of the control panel. When you open it up, the app will disconnect
I actually took my pressure washer and cleaned out the inside yesterday. Wrapped the fan and housing in plastic wrap beforehand. Blew all the buildup off, the manifold, then the grates, then did a complete burnoff and re-seasoning of the grill and grates. All of it is just a metal box
Wait till the 560 catches fire. You'll wish you had the app monitoring the thing then. Fires are not uncommon for these grills. Probes get destroyed, and if you don't catch it, it can turn into an inferno. I'd rather be on top of it and see how the cook is going. To each his own
Not in my case. 4 devices can't have the same problem. Apple device connected instantly. I had a running conversation with John Mclemore and some of his technical team, but I think they gave up, haven't heard from any of them for over a month now.