Pressed is an icon pack. It is not a stand alone application you need a third party launcher to apply it.

What you get:

? 4.886 HD icons (256x256)
?Cloud HD wallpapers.
? Launchers support: Action Adw AdwEX Apex Atom Aviate GO NextNova Smart Solo and more!
? Dynamic calendar
? Alternative icons to choose
? Updates

Some wallpapers are from the gifted: https://twitter.com/Maria2Ps