My brother used the app on his android and said it used half a GB in a few days.
I’m on iOS, I’ve used 463MB in a couple of weeks (but I’m on wifi most of the time).
My home assistant has used 482MB in and 202 MB out in the last 24 hrs. (I did install the HA update last night so that’s the spike at 1am. From what I can tell from the graph, the stats were reset when the install happened so the 477MB is not including the installation).
I’ve used 2.3GB in the past week according to my router:
