A free program for Android, by photoshop mobile apps.
You can do more than one thing with this application, it will help you to stitch two or more videos together, which is a process that is so much easier than you might think. This tool will allow you to merge your videos without the need to install an additional software, you just need to download this app and you can start using it.
The app supports a variety of formats, so that you can stitch up videos seamlessly together even if they are in different formats. You don’t need to worry about the frame rate, it’s all automatic and is coded to work for you.