Hey, cool app! It's nice to solve the local storage problem like this.
I am the founder of https://appstorerankings.net , a startup focused on ASO (App Store Optimization), so I'd looked up your app's keywords -- you're using "personal,live,movie,cloud,stream,air,share,remote" . That's only 49 characters out of 100 you could be using (or you've got duplicates with the title).
You should add some new keywords to your app, here are some suggestions - "server,vlc,player,audio,airplay,wmv,mkv,avi,nmp4" in order to get more downloads (These were automatically generated based on your current keywords). A lot of your competitors use file formats as keywords, so it's probably a good idea!