Advanced Popup Extension provides newsletter and buttons widget with 50+ different templates you can use and modify. Or create own pop-up with unlimited choosing options. Tested also on mobile and tablet devices. Duplicate Popup button together with analytics makes easy to perform A B testing. You can choose width unit (px or percentage) to make responsive popup for mobile devices. Devices field gives you option to different popup for mobiles and tablets. Own cookie for each popup, don't show the same popup again to the same user.