Germany's Federal Cartel Office has expressed concerns over Apple's App Tracking Transparency (ATT) feature, which could potentially violate antitrust rules for large tech companies. The regulator's preliminary findings come after a detailed three-year investigation into the feature, which allows iPhone users to block advertisers from tracking their activities across multiple apps. The investigation is part of broader scrutiny over the influence of major tech companies on the digital advertising ecosystem.

In a statement released on Thursday, the Federal Cartel Office noted that Apple now has the opportunity to respond to the allegations. The authority's concerns focus on whether ATT unfairly impacts the business models of other companies that rely on data-driven advertising, such as Meta Platforms, app developers, and startups. These businesses argue that the feature could severely limit their ability to target users with personalised ads, affecting their revenue generation strategies.

Apple has defended ATT as a crucial privacy tool that empowers users to have more control over their data. The company argues that the feature helps to protect user privacy by giving individuals the option to block third-party tracking. However, its critics, particularly in the advertising industry, contend that ATT has created an uneven playing field, disadvantaging businesses that depend on targeted advertising. The outcome of this investigation could have significant implications for Apple's business practices in Europe.