Yes the sprites and spritehseets found in the pack would work in a mobile game aswell.
Viewing post in Zombie City - HD Isometric Tileset comments
This package only includes graphics—no movement code or enemy AI. If you're looking for the example scene, it's available on the Unity Asset Store. The code there is meant to showcase the visuals, not serve as a full game framework. You're free to use it however you like, but keep in mind there's no formal documentation since I'm mainly focused on art, not code. Hope that helps!