In this article, I explained the two-sided relationship between Google and Apple. Although these two tech giants appear to be fierce competitors in public, behind the scenes, they are best friends, as Google pays $18 billion annually to remain the default search engine on all Apple devices, securing its monopoly over the online search market. Also, I explained how iPhone users account for $78.8 billion—nearly 45%—of Google’s annual ad search revenue, which explains why Google has consistently outbid Microsoft’s Bing since 2012 to maintain its position as the default search engine on Apple devices. Finally, I discussed how the U.S. Department of Justice has filed multiple antitrust lawsuits against Google to break up its monopolistic relationship with Apple. You can read the full article here: