> ## Documentation Index
> Fetch the complete documentation index at: https://stytch.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Mobile Biometrics

Biometrics have become a popular way for apps to layer low-friction step-up auth into user workflows — for good reason. Biometrics ensure a user demonstrates both possession of an original device and a unique biometric trait.

Between our iOS SDK, Android SDK, and React Native SDKs, Stytch supports Mobile Biometrics natively on all Apple and Android devices. Check out our [iOS SDK Docs](https://stytchauth.github.io/stytch-ios/latest/StytchCore/documentation/stytchcore/stytchclient/biometrics-swift.struct), [React Native SDK docs](/api-reference/consumer/mobile-sdks/react-native/methods/biometrics/overview), or [Android SDK docs](https://stytchauth.github.io/stytch-android/com/stytch/sdk/consumer/biometrics/package-summary.html) to integrate native biometrics into your app.