Stock Media: You won’t always have all the elements you need to make a great video.
Some apps let you switch the interface horizontally for a more traditional editing experience.
Landscape Mode: Editing a video vertically gets imprecise and frustrating.
Two or more video tracks allow you to create more intricate videos.
Multi-track Editing: Most mobile video editors only have a single video track to edit with.
Advanced Tools: Some apps have tools that are usually found in desktop video editing software, like chroma-key (green screen), video stabilization, color correction, and audio mixing.
Essential Tools: All video editing apps allow you to perform basic tasks like trimming and cropping footage, adding effects and filters, and adjusting picture and audio values.
Make sure the app you choose has the tools and features to make your videos the best they can be. Video editing is a complicated task, even on a smartphone. Kaspars Grinvalds/ What to Look for in Video Editing Apps