EAS Observe

EAS Observe is a performance monitoring tool tailored specifically for Expo and React Native applications. It provides real-time insights into startup times and screen usability metrics on actual user devices, ensuring developers can optimize their app's performance effectively. By simply installing the library and wrapping the root layout, teams can automatically gather detailed startup metrics without complex instrumentation. The platform uniquely tracks each native build and EAS update, offering a clear view of how new releases impact app performance. Additionally, it delivers comprehensive device context data—including model, OS, network type, thermal state, and frame data—enabling thorough analysis of user experiences across diverse environments. With a generous free plan covering 100K events monthly, EAS Observe is accessible for both small teams and larger projects aiming to enhance app speed and stability.