A good App and smart UI. But in the end, I choose another solution because not all popups are a Call to Action function. We're an apparel company offering custom made to order clothes that come in 15 sizes. We were looking for a popup window triggered by visitors to show our image-based size charts in a reasonably compact window. A competitor's popup solution offered a "slideshow" function where users can swipe left or right to see our Petite, Regular, and Tall charts, all in one compact window that didn't need to swell to accommodate three charts.