NSString *htmlString = @"<p> This is an <b>HTML</b> text</p>";
NSAttributedString *attributedString = [[NSMutableAttributedString alloc]
                                        initWithData: [htmlString dataUsingEncoding:NSUnicodeStringEncoding]
                                        options: @{ NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType }
                                        documentAttributes: nil
                                        error: nil
                                        ];
_yourTextView.attributedText = attributedString;
// If you want to modify the font
field.font = [UIFont fontWithName:@"Raleway-Regular" size:15];