Expo Go or Development Build? Building Production-Ready Authentication with Clerk

Expo developers often face challenges with mobile authentication, particularly with OAuth redirects and session persistence. This comprehensive guide details the process of creating an Expo app integrated with Clerk for authentication, covering various methods such as Google native sign-in, browser-based OAuth for Google and GitHub, email OTP, and protected routes. It emphasizes the importance of choosing between Expo Go and development builds based on the app's authentication needs, highlighting that development builds are crucial for OAuth and native sign-in due to Expo Go's limitations with custom URL schemes and native modules. The guide also outlines setting up Clerk's SDK for Expo, configuring necessary credentials, and building authentication flows with native components, offering a detailed walkthrough for developers to enhance their app's authentication capabilities. Additionally, it provides insights into production build configurations and discusses the advantages and trade-offs of different authentication approaches, including the comparison of Clerk's offerings with other providers like Auth0 and Firebase.