Sharing Data Between IOS Application and Unity Application in IOS platform

I am developing two applications
First app: in objective_c: exports a 3d model as a text
Second app: Written in Unity (C#) : 3d model viewer, it takes a string or a file path to render that 3d model
I wonder if there is a way to share data (string or file path) between these two apps
Thanks in advance.

 

Looks like there is.

 

i read it , it works if the two apps is written in objective_c and you can access the URL_SCHeme in objective_c
my problem is how to define and read the received data in unity

 

That's just one way to do it. Check out the second answer here, which outlines a half-dozen approaches. Surely there's one there which can work for you.