OUtystems Now Default enviromnent host name


I am trying to set default enviromnent host name in Outsystems Now iOS application. I added:

self.enviromnentHostname.text = @"mypersonnal.outsystemscloud.com";

at the end of readDafaultValues method in Classes/Utils/HubAppViewController.m 

My host name is displaying on IPhone and IPad emulator but when I run this app on phisical device it does not put my host name into the text field. 
Does anyone have any idea what can be wrong or have other working solution to set up host name by default in text field?