Trouble connecting to my mac book pro

Not sure what app I’m suppose to use Revo scan opens up but does not connect and
handy scan will connect and I get the top left pane showing the picture but nothing else below and in the big pane. I plugged into my mac and waited for the green light and then I open up each program but get the same outcome. Is it that I’m trying to hook it up direct or is it just for the wifi?