VivaVideo is one of the exceptionally popular video editing apps. In practice, though, it's a very middle-of-the-road video editor. It works especially well for short clips for social media. The app uses a storyboard style of editing where you load clips, edit and trim them as needed, and then move on to the next segment. It includes over 200 video filters and various other effects, text input, and fast and slow motion support. VivaVideo has a free version that comes with a watermark and a time limit for any given video. You can remove these restrictions by buying the pro version.
Funimate is one of the surprisingly popular, but not overly powerful video editor apps. It bills itself as being a great app for making music videos or simple videos out of the stuff you already have on your device. There are 15 video filters that you can play with and the creation process is fairly painless. This isn’t something you’d want to use on a serious video. It has things like video effects. However, it's better for short little social media posts rather than actual video production. You can download it for free to try it out yourself.
Cameo is another really good video editor app for iPhone, developed by the folks over at Vimeo. The app offers very basic video editing capabilities, but works really well. The interface is clean, and intuitive, and if you just want to perform a couple of basic edits on your video, Cameo is the perfect option. The app can import photos and videos from the camera roll, and you can easily trim them, add music, themes, and more. You can even adjust the intensity of the theme applied to the video, to get the perfect effect.
KineMaster is one of the most powerful video editor apps available. You can do the basics like most of these other video editors can. However, this one includes multiple video, image and effect layers. Additionally, there are audio filters, chroma key (for your green screen fans out there), various video effects, transitions, and more. It's not as powerful as a full desktop editor. However, this gets much closer than most other competitors. We would recommend this for actual video production (at least for stuff like YouTube). You can use it for free in trial mode for a while. However, you'll need the $4.99 per month subscription to get everything forever.