Apple Inc. fired back at Spotify Technology SA\u2019s antitrust complaint, saying the music streaming giant wants all the benefits of its app store without contributing to the marketplace. The iPhone maker said the App Store contributed to Spotify becoming the business it is today, a public company that generates over a billion dollars of revenue per quarter, according to a statement on Friday. Spotify, which offers both free and paid services, complained to the European Union\u2019s powerful antitrust agency that Apple\u2019s 30 per cent cut of revenue was effectively a tax on competitors. The feud comes as Apple expands by launching new services, moving into new business areas that compete with third-parties on its platform. Its 2014 acquisition of Beats came as the iPhone maker moved into music streaming and on March 25, the Cupertino, California-based company plans to unveil a new video streaming and magazine services. In its response to Spotify\u2019s complaints, Apple said it doesn\u2019t charge for distributing free apps and only takes the 30 per cent from paid subscriptions on its platform. It also said that the rate drops to 15 per cent for subscriptions of more than a year. \u201cThe majority of customers use their free, ad-supported product, which makes no contribution to the App Store,\u201d Apple said. \u201cEven now, only a tiny fraction of their subscriptions fall under Apple\u2019s revenue-sharing model. Spotify is asking for that number to be zero.\u201d Apple said its revenue share is in exchange for connecting a third-party\u2019s services to its users, using the App Store billing system, and its developer tools that allow Spotify to build its iPhone and iPad applications. \u201cDevelopers, from first-time engineers to larger companies, can rest assured that everyone is playing by the same set of rules. That\u2019s how it should be. We want more app businesses to thrive - including the ones that compete with some aspect of our business, because they drive us to be better,\u201d Apple said. The Stockholm-based music streaming service also said Apple "routinely blocks" some of its product upgrades, such as integration with the Siri digital assistant and the Apple Watch. Apple described Spotify\u2019s claims as "surprising," pointing out that the Swedish company has an Apple Watch app that\u2019s ranked as the top app in the wearable App Store\u2019s Music section. Apple said Spotify has informed it of plans to integrate the music streaming service with Siri and that Apple is "ready to help" as appropriate.