In a move following similar actions by the EU and Japan, Brazil has mandated Apple to allow third-party app stores and alternative payment processing on iOS. Now, app developers in Brazil can distribute their applications through non-Apple app stores and process payments for apps, including in-app purchases, outside of Apple’s payment system.
As has been the case previously, Apple has expressed concerns that such changes could lead to increased risks of malware, fraud, scams, and implications for user privacy and security.
To maintain a level of oversight, all third-party app stores must receive authorization from Apple and comply with ongoing requirements intended to protect developers and users. Furthermore, Apple will implement a baseline review, termed Notarization, for all applications, including those from alternative sources. This review process emphasizes fundamental functionality and user protection against significant threats.

Notarization includes a blend of automated checks and human assessments but is noted to be less exhaustive than the App Review procedure applied to all apps within the App Store.
Developers may also utilize third-party payment systems for apps distributed via the App Store. However, these alternative payment options will always be displayed alongside Apple’s In-App Purchase system.
Apple continues to retain significant revenue from these transactions, charging a 15% commission on all transactions for apps and services accessed via links in an app, with a reduced rate of 10% applicable to select developers. This structure mirrors the fees imposed on the majority of developers utilizing Apple’s payment services in the App Store, while a small number may incur a 21% charge. Additionally, in-app purchases made through Apple’s system are subject to an extra 5% fee.
Furthermore, developers are required to pay a "Core Technology Commission" of 5% to Apple, even if they market their applications outside of the App Store using alternative marketplaces. This fee is described by Apple as a way to compensate for the tools, technologies, and services that enable developers to create and distribute their apps to iOS users.