ScreenFlow is both a motion-capture tool as well as a video editor. Unlike some other capture utilities, it doesn’t allow you to capture just a portion of your screen—it’s all or nothing. When you wish to show just a bit of the screen you turn to its editing tools once you’ve completed your capture. They allow you to zoom in and out on the screen as well as add callouts, titles, annotations, transitions, and video and audio actions.
Source: ScreenFlow 5 review: The Mac’s best screencasting app gets better with iOS capture | Macworld
Abby Greenlee 