Scroll Box is now part of Sumo List Builder. When you want to add a popup according to the scroll behaviour of your visitors, the Sumo Scroll Box tool is an ideal solution. Great as a blogging tool which will work on any website. Called ‘the polite email capture box’, you can ask your visitor to sign up. You choose when the popup, based on one of the many customisable templates, appears. There’s a free trial and a range of affordable subscription plans.