It's not about a monopoly. That word never occurs in the document. It's about interoperability and nurturing a market. I quote from the EU document > connecte

It's not about a monopoly. That word never occurs in the document. It's about interoperability and nurturing a market. I quote from the EU document > connected devices of all brands will work better on iPhones. Device manufacturers will have new opportunities to bring innovative products to the market, improving the user experience for consumers based in Europe. About developers: > The measures will accelerate their ability to offer a wider choice to European consumers of innovative services and hardware that interoperate with iPhones and iPads. The DMA defines gatekeepers as "large digital platforms providing so called core platform services, such as for example online search engines, app stores, messenger services" and lists their obligations prohibitions. Apple is one of them because it's sufficiently large. Smaller companies are not gatekeepers and are out of the scope of the DMA.