Oh yeah, iOS App for Receipts, that's nice.
But at the end of the day, I don't think anyone with any more than a hobby business should consider it since you can't back it up.
Why is it Xero vs Wave and not Xero vs FreshDesk?
Well Wave is free, so that's a big deal. And Xero comes recommended by the bookkeepers that we work with a lot. So they make a lot of sense. FreshDesk .... any compelling features compared to the other two?