Other 4 great alternatives to iMovie for Mac.The best alternative to iMovie for Mac - Mac Video Converter Ultimate.iMovie for Mac - general introduction and download instruction.With iMovie for iOS, you can also edit videos on your iPhone or iPad and finish them on your Mac. You can easily browse your video clips and create Hollywood-style video trailers and stunning 4K movies. IMovie for Mac is a native video editing software developed by Apple to let you enjoy your videos like never before. IMovie for Mac - Get iMovie and 5 Best Alternatives on Mac (macOS High Sierra included)