Apple's App Tracking Transparency seems to not apply to Apple itself, find German regulators (Updated - Apple statement)

"Apple believes in thriving and competitive markets, and through the App Store, we’ve helped millions of developers turn their brightest ideas into apps that change the world. In Germany alone, the iOS app economy supports hundreds of thousands of jobs and has given developers of all sizes the same opportunity to share their passion and creativity with users, while creating a secure and trusted place for customers to download the apps they love.

“Privacy has always been at the center of our products and features. At Apple, we believe that a user’s data belongs to them and they should get to decide whether to share their data and with whom. We have long believed in the power of advertising to connect businesses with customers—and that you can have great advertising with great privacy. App Tracking Transparency (ATT) simply gives users the choice whether or not they want to allow apps to track them or share their information with data brokers. ATT does not prevent companies from advertising or restrict their use of the first-party data they obtain from users with their consent.

"These rules apply equally to all developers — including Apple — and we have received strong support from regulators and privacy advocates for this feature. Apple holds itself to a higher privacy standard than almost any other company by providing users with an affirmative choice as to whether or not they would like personalized ads at all.

"We will continue to engage constructively with the FCO to address any of their questions and discuss how our approach promotes competition and choice, while protecting users’ privacy and security.”