Creating a working phone in Unity

Good day! I am currently learning to create Augmented Reality apps using Unity3D and am currently working(trying) to create an “interactive” phone where it will just navigate when you click on the apps or you swipe or something.

So my current model is an iPhone, I’m actually done creating the model, and my question is what can be my approach to this? Do I create buttons for each application in the home screen and just load the scene for that application? Or is there an easier way?

[Here is the model by the way] (Imgur: The magic of the Internet)

From what I know, you must make buttons for each application and make the load when you click the buttons. Your project will take quite some scripting.