Glitterly - The video editor for making short video clips of your apps
DaVinci Resolve - Revolutionary new tools for editing, color correction and professional audio post production, all in a single application!
InVideo.io - Create thumb-stopping videos in mins for just $10/month even if you've never edited a video before!
Kdenlive - Free and open-source, full-featured video editor.
Coub - Coub is an app that features GIFs, but the GIFs that you select and send to other people have sounds.
Filmora - Filmora is a trusted, legacy video editing platform that's strong in the fundamentals but lacks some of the bells and whistles that come with some other video editing software.