Yes, both ScreenFlow and ScreenSight offer a Free Trial.
ScreenFlow is designed for Medium Business and Small Business.
ScreenSight is designed for Large Enterprises, Medium Business and Small Business.
Pricing for ScreenFlow Starts at $129 whereas for ScreenSight Starts at $19/Month.
Some top alternatives to ScreenFlow includes Create, VideoStudio Pro, Camtasia, Loom, Snagit, Vmaker, RecordCast, Filmage Screen and iMovie.
Some top alternatives to ScreenSight includes Pitchy, Scribe, ScreenFlow, Snagit, Jumpshare, hubPitch, berrycast, YouPitch.Me and Screenrec.