I have used the mobile app since the beginning and it works great. I use it away from home via my home VPN, but mostly I use it while at home. Last night my Internet went out. I could use my web browser on my desktop to access my dashboards and still switch things on and off just fine. Most of my voice control is normally via Alexa and we know when the Internet is out, she is out.
Well, my cell phone with the Hubitat Android app is my next most convenient device to use. Last night my Internet went out and the mobile app would not connect to my dashboard because it said it was not reachable and even listed the local IP for my HE. So, I fired up my web browser on the same phone and went to the same address and logged in and was able to control everything from the dashboards. So, why can't the mobile app work if my Internet is down even though it is accessing the local network?