ScreenFlow offers Free Trial, but iMovie does not.
ScreenFlow is designed for Medium Business and Small Business.
iMovie is designed for Large Enterprises, Medium Business and Small Business.
The starting price of ScreenFlow begins at $129, while pricing details for iMovie are unavailable.
Some top alternatives to ScreenFlow includes Create, VideoStudio Pro, Camtasia, Loom, Snagit, Vmaker, RecordCast, Filmage Screen and iMovie.
Some top alternatives to iMovie includes Moovly, Promo.com, ClipChamp, WeVideo, VEED, FlexClip, VideoStudio Pro, InScope Video, VidChops, Adobe Premiere Pro, Switcher Studio, Animaker, Vidds, Filmora and VideoProc Vlogger.