Responsive One Pager that promotes a new anonymous messaging app called ‘Shadow’. I’d suggest some added smooth scroll functionality and maybe losing the “Home” link in the header. I think this is a real good choice of header image suited to the app topic.

This website has unfortunately redesigned or gone offline, so I have removed the link to it. The screenshot below hopefully preserved enough of the design for you. FYI: the site was first featured on 24 December 2014.