These two are both used in order to edit the videos that you have created. iMovie comes with a limited number of effects and transitions that you can greatly when you are editing your own video. Final Cut comes with more effects and transitions.
You can save the video that you will make with Final Cut in a separate file from the video that you have edited. Final Cut comes with more options but it may be harder to understand as compared to iMovie which also has a simple interface. IMovie is recommended when you are a beginner while Final Cut is recommended if you have already done a lot of editing in the past.
People nowadays love taking videos of their trips, everyday life, and even videos of their cats that they share to the people online. iMovie and Final Cut are the two top choices of people who are editing their videos. iMovie is by Apple for Mac and iOS users which were first released in 1997 while Final Cut is also developed by Apple but was only released in 2011.
The iMovie is known to be user-friendly that anyone can edit their videos and may look like written by a professional. Final Cut, on the other hand, is made for professionals to create high-quality videos such as wedding videos and commercial ads that some people might find it challenging to use.