title: How to create subscript characters that's not in Unicode in iOS
body: <p>I've been trying for a while now to create a NSString with subscripted character without success. Is it even possible to do this in iOS?<br>
  I need a way to change characters in a string to subscript or superscript, and I can't use the Unicode for this as Unicode doesn't have all the letters.<br>
  My guess could be to use the HTML tags <code>&lt;sub&gt;</code> and <code>&lt;sup&gt;</code> but I haven't find a way to convert said HTML tags to a NSString.</p>