If you have edited videos on the PC, chances are that you have heard of ActionDirector. The Android app comes from the same developers and offers similar features on your smartphones and tablets. Features like rewind, slow-motion etc are available by default, making this a pretty handy app to make short videos or documentaries using just your smartphone or tablet. The app comes with the ability to edit 4K videos, just like you would on the desktop. Once created, you can share these videos on social media websites as you please.
Getting 4K video editing support on mobile is pretty rare. We recommend using ActionDirector for this reason alone. It is a free download from the Play Store, although you can make an in-app purchase to unlock more features. The free app comes with ads, which is a small sacrifice to make considering the kind of features it offers.