This package is designed for converting html text to NSAttributedString. You should only consider using this package while NSAttributedString(data:options:documentAttributes:) does not meet your requirements.
HTMLAttributedStringParser gives you more control of the string parsing, it allows you to customize your own attribute and tag renderers. Howerver, it provides very limited pre-defined renderers for now, so you can consider it as a framework for you to render your own attributed string from html text.