I purchased this plugin 6 months ago app. and now that I had to use it, I realized that it is not really responsive. The popup just change the scale size. The items inside popup don't change of order. This should be fixed in futures updates. Very disappointed. Also, its very dificult to use. I guess at this time is impossible to ask for a refund.
Author response
Imagine that you created popup with certain image background and positioned input fields with some creative approach. How do think the order must be chnaged? No way. Right? That's why I used different approach. You create 2 different popup. First one looks perfectly on desktops. Second one - on mobiles. Then you configure plugin to use different popups for desktops and for mobiles. It works and it is simple way. ;-)