THE BEST SOLUTION FOR: Mac users quickly recording system/onscreen audio.

ADVANTAGES: Free download; Record audio/video very simply; Edit separate tracks

DISADVANTAGES: Exports video with a watermarked ‘Demo Mode’, but offers full AIFF and AAC audio export, as well as editing features, when in demo mode

Screenflow is an application that enables you to record screen video and audio at the same time on Mac. It sells for $129 but there is a free trial option which has no limitations other than watermarking exported videos. It can record from multiple video and audio sources simultaneously (onscreen, webcam, mics, even iPhone), and has editing functionality, with a familiar multitrack interface. Ideal for recording from Facetime or other online sound sources.

You will find the options for source selection when starting a new recording. When the recording is finished, the files are loaded into the editor to be exported.