(credit: Apple)

Apple is coming under fire from rivals Meta and Microsoft who say its plans to open up its mobile software to comply with a landmark EU law fail to go far enough, as the iPhone maker faces unprecedented regulatory challenges from Brussels over the coming month.

EU regulators, who are preparing to fine the tech giant 500 million euros in March over allegedly favoring its music-streaming app against competitors like Spotify, are also being lobbied to reject Apple’s proposals to satisfy the bloc’s Digital Markets Act.

The growing backlash against Apple comes as it is forced to make some of the biggest changes to its business model in years, following concerns over the dominance of its App Store, which forms a large share of the company’s $85 billion-a-year services business.