Title For Navigation Controller In Tab Controller

If you just set only a self.title and self.tabBarItem.title, your tabBarItem title will change to the title of navigation controller.
So, this is the solution, taken from StackOverflow:

self.title = @"Title for TabBarItem";
 // TabBarItem.title inherits the viewController's self.title
self.navigationItem.title = @"Title for NavigationBar";