There's a bug in the app when looking at 7 day stats, there's 2 Sundays and no Monday listed in the week. It's in the bottom part of the stats where the days of the week are listed. I tried to report this in chat on phone with screenshots except customer support started chatting about my sales stats.
Hi, I've never used the App, but others have said it's pretty glitchy. And I think one of those glitches pertains to Stats as well.