Getting all uiviewcontrollers which are loaded

You can do some recursive printout like this (I know it's not perfect, but it's a start):

static void printViewControllerRecursively(UIViewController *viewController, NSUInteger level) { NSMutableString *spaces = [NSMutableString stringWithCapacity:level * 3]; for (NSUInteger i = 0; i < level; ++i) { [spaces appendString:@" "]; } NSLog(@"%@->%@", spaces, viewController); if ([viewController isKindOfClass:[UITabBarController class]]) { for (UIViewController *child in [(UITabBarController *)viewController viewControllers]) { printViewControllerRecursively(child, level + 1); } } else if ([viewController isKindOfClass:[UINavigationController class]]) { for (UIViewController *child in [(UINavigationController *)viewController viewControllers]) { printViewControllerRecursively(child, ++level); } } } 

Then just call printViewControllerRecursively([UIApplication sharedApplication].keyWindow.rootViewController, 0);

This doesn't seem like a good way to try and debug anyhitng but that being said you can use:

NSLog(@"%@", [self.navigationController viewControllers]); 

or

NSLog(@"%@", [self.tabBarController viewControllers]); 

etc ...

Guess it depends on how you've setup your App.