Expo is a transformative framework for developing native apps on Android and iOS, and when paired with Descope, it offers a seamless, secure authentication solution for mobile applications. Descope enhances Expo's OAuth implementation by centralizing identity management across identity providers, facilitating passwordless authentication, and allowing for customizable user experiences. Integrating Descope with Expo simplifies the management of multiple OAuth providers, enabling developers to create tailored onboarding processes and merge identities effortlessly. The blog provides practical guidance on setting up Expo authentication with Descope, highlighting the ease of configuring custom claims and utilizing OpenID Connect (OIDC) capabilities for user information retrieval. This integration is positioned as a valuable tool for developers aiming to create personalized and secure authentication experiences in their mobile apps.