In today's world, security is no longer optional - it's expected. Whether it's a fintech app, a fitness tracker, or an internal company tool, users want fast and secure access without the hassle of remembering passwords.
That's exactly where biometric authentication comes in.
In this guide, we'll walk through how we implement biometric authentication in a Flutter app, the practical approach we follow in production, and the common mistakes developers often make (and how to avoid them).
Why Biometric Authentication?
Before jumping into implementation, let's quickly understand why it matters:
