How to go to “Home-page” in iOS App?

Question

I have UIViewController and UITabBarController. UIViewController contain 5 buttons and UITabBarController has 5 Tabs.

Answer 1

I suggest you to take a one Navigation Controller as a parent.
Then, add your Startup View as a root view of it.

On your main view controller page,

- (void)viewWillAppear:(BOOL)animated
{
   self.navigationController.navigationBarHidden = NO;
}

So, it will hide your main navigation. So no need to worry for this internal navigation flow.
And for internal navigation, you have already taken different navigation controllers.

By using code:

[self.parentViewController.navigationController popToRootViewControllerAnimated:YES];

you'll be at root of the application and it will poped out all view controller which were stacked in application.

Hopefully, you'll understand flow & will apply if you feel good.

Enjoy Coding.
Thanks.