The billionaire said in posts on X that the consumer tech giant was violating antitrust laws by giving preferential treatment to OpenAI on the App Store.

Apple has rejected accusations from Elon Musk that its App Store stifles competiton, insisting it is "designed to be free and fair of bias." X owner Musk has threatened Apple with legal action after claiming it had made it "impossible" for apps to compete with ChatGPT-maker OpenAI in the store He also called OpenAI boss Sam Altman a "liar" - after Altman claimed Musk used his platform to "benefit himself and his own companies".