I'm the almost-happy owner of a Shelly 2.5 used on a roller shutter. I purchased it to be used mainly trough MQTT tough I've been able yet to use it like that, but I'll!!! my intention is to install it on all my 7 windows.
So meanwhile I learn how to do the MQTT thing... I use the app on my IphoneX. the problem is that I get a lot of "disconnected" messages when Im using it, the app loses connection with the device. Wifi signal is good, (no more than 5 meters from router) latest firmware, latest app... but no solution.
I've tried with andorid and works like a charm. but not from IOS.
edit, same issue from my ipad