Apple was hit with a complaint to EU antitrust regulators by two civil rights groups on Wednesday over the terms and conditions of its App Store and devices for allegedly breaching landmark rules aimed at reining in Big Tech.

The joint complaint by Article 19 and Germany's Society for Civil Rights to the European Commission could pose yet another headache for Apple, which was fined 500 million euros ($583 million) in April for violating the Digital Markets Act.

Apple did not immediately respond to a request for comment.