;When people use smartphones, the application store is an essential product. The competition about the relevant market of application store will affect the people′s interests. And what the application store enterprise did violates antitrust laws or not is an issue that everyone cares. Apple app store (AAS) is the application store developed by Apple Inc. Compared with other enterprises, Apple Inc.′s behavior is quite controversial. Therefore, this study will analyze Apple Inc.′s business strategy in the relevant market that AAS belongs, and whether the exclusionary practices that Apple Inc. did is anti-competitive. In order to achieve the purpose of this study, this study will discuss the business model of AAS, and then assess the market scope and the market power of the relevant market that AAS belongs. Finally, the study will analyze whether the exclusionary practices that Apple Inc. did through AAS is anti-competitive. In the conclusion of this study, the self-preferencing practices about AAS′s commission policy and sales strategies is anti-competition. On the other hand, making anti-steering provisions is an act about abusing of monopolistic position. The self-preferencing practices and the act about abusing of monopolistic position are not conducive to the competition of the market of app distribution on iOS device and the market of iOS app. To avoid above-mentioned antitrust acts damaging the competition and the people′s interests, it is important to making the laws about the antitrust acts that digital platforms enterprises do. And abolishing anti-steering provisions, prohibiting the self-preferencing practices about AAS′s sales strategies, and advancing the conciliation of Apple′s antitrust lawsuits will promote the interests of developers and consumers that use AAS.
