@Crookie to the rescue!
Thank you so much for that info. @HelloOutThere, sorry if I sent you into your settings on a wild goose chase. But now we know!
Thanks to Crookie’s info, I searched on the forums and found these two topics:
That second link mentions the mysterious “forum app” that HelloOutThere also has. I want to say that’s probably just a web app, but it’s moot.
Also, to reiterate about the iOS/iPhone TH app, the link to the forums does work.