NSMutableAttributedString

                ****************  Do you want fancy Text    ***************


#import "ViewController.h"

@interface ViewController ()
@property (weak, nonatomic) IBOutlet UILabel *myLabel;

@end

@implementation ViewController

- (void)viewDidLoad
{
  
    [super viewDidLoad];
  
    // Do any additional setup after loading the view, typically from a nib.
  
    NSString *myString = @"That is a test attributed string.";
  
  
    NSMutableAttributedString *str = [[NSMutableAttributedString alloc] initWithString:myString];
        [str addAttribute:NSBackgroundColorAttributeName value:[UIColor yellowColor] range:NSMakeRange(3,5)];
        [str addAttribute:NSForegroundColorAttributeName value:[UIColor greenColor] range:NSMakeRange(10,7)];
  
        [str addAttribute:NSFontAttributeName value:[UIFont fontWithName:@"HelveticaNeue-Bold" size:20.0] range:NSMakeRange(20, 10)];
        [str addAttribute:NSUnderlineStyleAttributeName value:@(NSUnderlineStyleThick) range:NSMakeRange(0, [str length] - 5)];
  
    _myLabel.attributedText = str;
  
  
  
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end


Output: You can see label as below from your simulator, if you would have taken some label and assign above str string to your IBOutlet Label.