title: Dynamic global variables in iOS app
body: <p>I searched the internet and more than 20 topics about global variables, I just couldn't find the one I need.</p>
  
  <ul>
  <li>Will use it in an iOS application.</li>
  <li>I want the variable to be accessible from all views.</li>
  <li>I want a few views to be able to change that variable.</li>
  <li>Preferably don't want to mess with segues.</li>
  </ul>