In case anyone is confused: For many months, the stats have been off by one day on the Etsy seller phone app. So where it shows yesterday's numbers, it is actually for today. For the desktop/laptop version, the stats are matched up with today's date. I hope they fix this at some point!
My stats are not showing correctly even using my desktop.
I think it's happening on Android only, looks fine on my iPad but off on my Android. Don't think it'll ever be fixed.