Four years ago, we got our first glimpse at Apple News, designed to provide millions of iOS users with easy access to curated, top-quality journalism. Today, Apple's service is the number one news app, with over 5 billion articles being read each month. And the number is only going to grow higher, it seems.

At today's "It's Showtime" event, Apple announced a major new addition to its service. It is called Apple News+ – a premium subscription that opens the gates to even more high-quality content for $9.99 per month. 

Apple News+ is like Netflix or Spotify, but for news ...