How does iMovie for iPhone *not* support vertical video editing in 2020??
Once upon a time, Apple was an influential leader in creative software and hardware. Then, it invented the iPhone.
Quik by GoPro would be perfect if it had a no filter, just simple splice mode. Anyway, it worked for my Instagram story. https://itunes.apple.com/us/app/replay-video-editor-for-instagram/id694164275