title: How to programmatically add calendar subscriptions on iOS?
body: <p>Via the settings panel of your iPhone, you can add a subscription to a remote .ics calendar format. I have <a href="http://appshopper.com/productivity/feestdagen-2010-2011" rel="noreferrer">a Dutch iPhone app</a> that does this from within the app (see the screenshot below, "abonneren op de agenda" means "subscribe to the calendar"), but there must be others too.</p>
  
  <p>I want to mimic this behavior for a project of mine, but I can't find the API to do this with. It looks like it's not a part of EventKit, but because there's no app switching going on when you hit 'subscribe' in the example app I suspect it's also not a url scheme. </p>
  
  <p>Who knows?</p>
  
  <p><img src="https://i.stack.imgur.com/oE7FX.png" alt="Existing app">
  <img src="https://i.stack.imgur.com/chV5O.jpg" alt="Subscriptions in the mail settings panel"></p>