Reviewed in A beautiful and improved Android experience
An old favorite of mine. Open this by using the Google Now gesture or a link in the status bar, enter the app name and open an app. Much faster than the similar Quad Drawer app. It doesn't look as pretty but does what is supposed to do. The new version records your usage patterns and places those apps at the top of the suggestions list which you often use at a specific time.
Amazon - value 1, 99