app store commissionApple lawsuitclass action lawsuitdigital content feesfair trade actGoogle lawsuitin-app purchaseKorean publishing associationsmobile app industrymonopoly regulation 18 6월 2025 Korean Publishing Associations Sue Google and Apple in the US: A Landmark Legal Battle Over In-App Payment Fees Korean Publishing Associations Sue Google and Apple in the US: A Landmark Legal Battle Over In-App …