I have some devices that work with GH and some that work with HK. I was going to have both apps open at the same time, but GH doesn’t support multitasking on the iPad. So that led me to try to find an app that combines the two platforms into one view, but I haven’t been able to. Any suggestions?
And let Homeassistant comments begin. I’ll go first, although it requires hardware to run (like raspberry pi), but it is a one stop shop for everything that works with Google/Homekit/pretty much anything.