If I had to choose I'd decide to go with popups instead of popunders. Why? Here is my reason: if I target a weight loss product with Leadimpact then the potential customer may buy my product instead of the products on the trigger site because he see my landing page first and engages with it. In the other case, when I would promote the same with Traffic Vance, that potential customer would see the trigger site first and engage with that, buy the product and then visit my site, he wont be interested as he just bough a similar product a minute ago. Am I Right? Or do I see something wrong about it?
I'm asking those people who used both, which one converted better for you? I do pretty well with Leadimpact but I want to scale up my campaigns.