biometric_guard: The Best Flutter Package for Biometric Authentication with Session Management (Android & iOS)

A complete guide to biometric_guard — a Flutter package for biometric and device-credential authentication with built-in session management, widget guards, route guards, reactive UI state, and lifecycle-safe background/foreground handling. What Is biometric_guard? If you've ever used Flutter biometric authentication, you've probably come across local_auth . While local_auth provides the core authenticate() API, developers still need to build: Session timeout handling Route protection Widget-leve