Can I Use This Code For IOS?

Can I use this code for IOS touch screen? Will it work with it, or do I have to make some minor changes? This code is for the GUI textures for my Menus to touch on them and go to different scenes. I also plan on using something similar to this with my character Jumping when I click any part of the screen. So can it work?:

 public class mouseClick : MonoBehaviour {
 
     public Texture2D normalTex;
     public Texture2D hoverTex;
     
 
     void OnMouseEnter(){
     
         guiTexture.texture = hoverTex;
 
     }
 
     void OnMouseExit(){
 
         guiTexture.texture = normalTex;
 
     }
 
     void OnMouseDown(){
         Application.LoadLevel("OptionsMenu");
 
 }
 }

Sorry for the overused question, but if you guys can at least link me to some documentation, tutorials, or give me some info right here I will be most grateful.