Epic Games referred Apple to the European Commission after Apple rejected its notarization submission for the Epic Games Store, alleging it was "arbitrary, obstructive, and in violation of the Digital Markets Act (DMA)." Epic claimed that Apple took issue with the design and position of its "Install" and "In-app purchases" buttons, saying they were too similar to Apple's own buttons.
Apple initially rejected Epic's submission due to the design and position of Epic's "Install" button being too similar to Apple's "Get" button, and Epic's "In-app purchases" label being too similar to Apple's "In-App Purchases" label5. Epic argued that these naming conventions are standard across popular app stores on multiple platforms and that they were following standard conventions for buttons in iOS apps.
Yes, Apple has accepted Epic Games' notarization submission after initially rejecting it twice. Epic Games accused Apple of delaying the approval process due to similarities between the App Store and Epic's marketplace. Following Epic's public complaint, Apple approved the Epic Games app marketplace.