SumoMe List Builder for WordPress
SumoMe is a WordPress plugin that offers a plethora of tools to help you grow your email list. Examples include, pop ups on the top of the page, the side of the page, pop-ups that slide in, pop-ups that wave at you etc. Once SumoMe is installed you will be able to test all of these different options and see which one works best for growing your list.
Opt-in boxes are displayed as a lightbox. If you are looking for scroll-triggered slide-ins you can try the SumoMe Scroll Box. Targeting options include page URL, device type, time on page, frequency, and more. In addition to their standard template, you also have the ability to add custom images and HTML. A/B split testing is also available in Pro Plan.
Price – Free – 40$/month to $100/month