The full text of staff report (here) fills 404 heavily footnoted pages, not counting the Appendices. The Apple section runs 45 pages.
Before we go there, however, I should mention that Apple comes up a lot in “Section III BACKGROUND,” which makes the case that each part of the iOS-Android duopoly is, in fact, a monopoly and should be regulated as such.
If that doesn’t stop you, zoom right ahead to p. 329, Apple as a “Dominant Online Platform.”
I skipped the familiar complaints about side-loading and Apple’s 30%-15% fees.
The section I read most closely dealt with how Apple competes with third-party apps on an Apple-controlled platform. The broad allegation is that Apple is taking illegal advantage of its iOS monopoly. Here’s a sample, starting on page 352:
Apple pre-installs about 40 Apple apps into current iPhone models. Several of these apps are set as defaults and are “operating system apps” that are “integrated into the phone’s core operating system and part of the combined experience of iOS and iPhone.” According to Apple, users can delete most of these pre-installed apps. Apple does not preinstall any third-party apps.
Consumers are more likely to use the apps that are pre-installed on their smartphones. Consumers will download apps that compete with pre-installed apps only when there is a noted quality difference, and even then, lower-quality apps will still enjoy an advantage over third-party apps…
Apple’s public APIs default to Apple’s pre-installed applications. As a result, when an iPhone user clicks on a link, the webpage opens in the Safari Browser, a song request opens in Apple Music, and clicking on an address launches Apple Maps. With some exceptions, users are unable to change this default setting;
Like setting advantageous defaults and pre-installing its own apps, Apple is also able to preference its own services by reserving access to APIs and certain device functionalities for itself. ACM and technology reporters have both noted that “private APIs have the potential to give Apple apps a competitive advantage,” and that “Apple has for a long time favored its own services through APIs. For example, from the release of iOS 4.3 until iOS 8, “third-party developers had to rely on the UIWebView API to render web pages in iOS apps, while Apple gave its own apps access to a private, faster API,” and as a result, “Google’s mobile version of Chrome for iOS could not compete with Apple’s mobile version of Safari in terms of speed.”
There’s more along those lines, but you get the idea. For my money, this is where Apple could be vulnerable to a classic antitrust charge. Your mileage may vary.