Starting with iOS 26.2, developers in Japan can use browser engines other than WebKit for two types of apps: dedicated browser apps and in-app browsers. Apple is granting access to specific technologies that enhance performance, such as just-in-time compilation and multiprocess support. However, due to security risks, developers must meet strict criteria to implement these alternative engines. These criteria include ongoing commitments to privacy and security, like timely updates to address vulnerabilities. For dedicated browser apps, developers need to apply for the Web Browser Engine Entitlement. Requirements include distribution solely in Japan, having the Default Browser Entitlement, and passing various industry-standard tests. Specifically, apps must achieve at least 90% on Web Platform Tests and 80% on Test262. Developers must also adhere to secure development practices, provide a vulnerability disclosure policy, and demonstrate a commitment to resolving vulnerabilities promptly. For in-app browsing, the Embedded Browser Engine Entitlement allows embedding an alternative engine within apps. The browsing experience must dominate the interface, provide access to the system’s default browser, and display the current domain. This ensures users can navigate effectively while maintaining a clear understanding of the content being accessed. Overall, Apple aims to foster competition while prioritizing user security and privacy in web browsing experiences.