I am pretty sure they have a desktop version of this app as well. I saw on their website you can download it and I saw a few youtube tutorials on how to use it. I haven't tried it yet.
I used the default video editor provided by my phone and it worked perfectly for simple tasks such as split, delete or mute audio. I do not use my smartphone for professional projects, therefore, I use Adobe Premiere to edit what I film with my video camera.