IMovie is the only video editing app here that's only available for the iPhone (it is an Apple product, after all) but it's worth including for iOS users because of its ease of use and elegant interface. There are some other editing options at your disposal, but the appeal here is Quik's ability to whip up fun videos with little effort. Just choose the videos, add a title, choose some music, and Quik uses AI to find the most compelling video bits for you.
Free for anyone to use, the app excels at making a highlight reel from video clips you specify. You don't need a GoPro camera to use GoPro Quik for iPhone or Android. Vimeo Create doesn't look or behave like a traditional video editor, so you don't need any video skills to start using the app immediately. Even when just using the free version, there are plenty of free templates and features, but you can upgrade to the paid plan to unlock additional templates (and the 30-second video limit). You can customize colors, text, fonts, filters, and more, and even choose from a large catalog of royalty-free music options. Need to create polished short-form videos for social media or other online applications? Vimeo Create lets anyone take video clips and incorporate them into a wide variety of templates on both iPhone and Android. Some features, like digital stabilization, are only available if you upgrade to the paid service, but both the free and paid versions of the app have a handy auto-rotate interface that lets you use it in portrait or landscape orientation. Similar to KineMaster in overall scope of features and ease of use, PowerDirector for iPhone and Android lets you work with multiple video tracks, audio tracks, and do a lot of the sorts of editing you'd do on the desktop - including trimming and splitting video, adding filters, adjusting color and exposure, and so on.