Screenr is a free parallax WP theme which best suited for agency, freelancers, business, and just everyone who value marvelous design. Its responsive design makes it adapt any screen size and the custom content blocks lets you place the content in your own style. Other features include parallax background effects, SEO-friendliness, full localization, custom page templates, custom widgets, page speed optimization, cross browser compatibility etc. It works phenomenally well on all WP versions above 4.4.