I've looked around and haven't really found anything that will quite work for what I need.

What I'm looking for is something that would be able to tie into either the shopping cart (Shopify) or perhaps Google's conversion tracking, or some other way if there is another solution. But basically, I need a counter that would work in real-time to show the number of sales as they occur.

I know I've seen it out there before, I just cant find exactly how to do it.

Is there a simple solution for this? Or difficult, either way..