> For the complete documentation index, see [llms.txt](https://docs.caf.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.caf.io/caf-sdk/react-native/standalone-modules/cafsmartauth.md).

# Smart Auth

CafSmartAuth enables you to integrate advanced live facial verification and fingerprint authentication technologies into Android applications. It provides a secure and seamless way to authenticate users, ensuring high reliability and an enhanced user experience.

* [Native Modules](/caf-sdk/react-native/standalone-modules/cafsmartauth/native-modules.md): This module utilizes React Native's Native Modules system for direct integration with native functionalities, offering greater flexibility and customization.
* [Expo Modules](/caf-sdk/react-native/standalone-modules/cafsmartauth/expo-modules.md): This module leverages the Expo Modules API to build a native bridge between JavaScript and native functionalities, ideal for applications within the Expo ecosystem.

Both modules are designed to provide robust authentication support and effortless integration with CafSmartAuth.


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