Slick Landing Page promoting the new desktop app for Smartmockups. Neat integration too for the payments with Gumroad without the user having to leave the One Pager. And nice touch with the changing gradient background effect.
This website has unfortunately been redesigned or gone offline, so I have removed the direct link to it. The screenshot below hopefully preserved enough of the design. FYI: the site was first featured on 25 July 2016.