GoPro Studio Video Editor varies-with-device

A free program for Android, by muvee Mobile.

GoPro Studio: Action Cam & GoPro Editor is a powerful video editing tool for users of the GoPro and Action Camcorder. It is designed to edit and combine multiple clips, add titles, music, effects, and overlays, and export your videos to share on Facebook and YouTube. It has a simple and intuitive interface that makes editing easy for everyone.

Add titles, music, and effects to your videos. Edit your clips and combine them into a single video. Split your video into multiple clips and change the order of the clips. Join two clips together to create a new clip. Add multiple effects to your video, including slow motion, zoom, and crop. Use the color overlay to edit your video like a professional. Use the action overlay to create a movie with your favorite scenes and transitions.

This is designed to work on Android devices. It is simple to use and intuitive for everyone. There is no need to download extra plugins or other software to edit your videos.