Expo EAS Client

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library 55.0.5 ·javascript
verified May 27, 2026

The `expo-eas-client` package provides a stable client identifier for Expo Application Services (EAS) within a React Native application. This identifier, often a UUID, is persistently stored on the device—in `NSUserDefaults` on iOS and `SharedPreferences` on Android—ensuring it remains consistent even after app reinstalls or device restores. This is crucial for EAS services to uniquely identify an app installation across sessions and device lifecycles. As of the provided version `55.0.5`, this package is an integral part of the Expo SDK, which releases major versions approximately three times a year, aligning with React Native's release cadence. Its key differentiator is its transparent management of a persistent client ID, forming a foundational component for robust analytics, push notifications, and other device-specific EAS functionalities, rather than being a standalone library for direct end-developer interaction outside the Expo ecosystem.

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