A Portuguese app store, Aptoide, has filed a lawsuit against Google in a U.S. federal court, alleging monopolistic practices that hinder competition in the Android ecosystem. Aptoide claims that Google controls app distribution and in-app billing systems, violating U.S. antitrust laws. The company argues that it could compete more effectively against Google's pricing and policies if not for what it describes as an "anticompetitive chokehold." Aptoide alleges it is directed away from exclusive content and is excluded from accessing critical services, which harms its business. The lawsuit seeks to stop these practices and demands unspecified triple damages. Aptoide has approximately 436,000 apps and serves over 200 million annual users. This lawsuit follows Aptoide's previous complaint against Google with EU regulators in 2014. The case adds to Google's ongoing antitrust issues, including a recent agreement to modify its practices following a legal battle with Epic Games and a separate ruling declaring Google's search engine an illegal monopoly.