Jungle Compatability

Gents, maybe someone who has the other controller can answer this. I see that there are a ton of mobile games not on the compatable list for the new controller or the jujitsu or w.e its called. Is the app comes with it to set up the controller a configurable one where you place buttons on the screen and the controller will press there? Or will I need to use a 3rd party rooted app to get it to work with games like pubg and fortnight?