You can preview all popups right from the admin backend easily at Notification section. This grid will show you all notifications in 7 types:

Preview all Purchase pop-ups

Popups show order data. They can be updated auto or manually.

preview purchase popup

Preview all Add-to-cart pop-ups

Popups show add-to-cart items information.

preview add-to-cart popup

Preview all "Sign up" popups

preview sign up popup

Preview all "Review" popups

preview review popup

Preview all "Statistic pageviews" popups

preview Statistic pageviews

Preview all "Statistic purchases" popups

preview Statistic purchases

Preview all Custom pop-ups

preview custom

Note: All kind of popups can be imported to this section.

=> View How to import available popups