> For the complete documentation index, see [llms.txt](https://docs.uqudo.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.uqudo.com/docs/kyc/readme/use-cases/face-authentication.md).

# Face Authentication

During Enrolment, a user's facial image (selfie) is captured and saved in your systems. This saved image can later be used for various purposes: authentication, transaction verification, or account resets.

* **Authentication**: For logging in, users capture a fresh selfie, which is then compared with the saved facial image. If both images match, the user is granted access to your services.
* **Transaction Verification**: When users initiate actions like bank transfers, they are prompted to take a selfie. Upon a match with the stored image, the transaction proceeds.
* **Account Resets**: If users forget their password, they can opt to reset it by providing a selfie. A match with the saved face image allows them to set a new password.

The flow diagram below shows the participants of the use case and the data flow:

<div data-full-width="true"><figure><img src="/files/Hvnlm0XxjZ0sXLMCihcX" alt=""><figcaption></figcaption></figure></div>

Below you can find the links for each of the three steps for all supported platforms:

<details>

<summary>Android</summary>

1. [Prepare the environment](/docs/kyc/uqudo-sdk/integration/android/prepare-environment.md)
2. [Call the uqudo SDK from your Android app](/docs/kyc/uqudo-sdk/integration/android/face-session-flow.md)
3. [Process the result](/docs/kyc/uqudo-sdk/sdk-result/validation-and-parsing.md)

For example code, please visit [Uqudo's GitHub repository](https://github.com/uqudo-com/sample-app-android-kotlin).

</details>

<details>

<summary>iOS</summary>

1. [Prepare the environment](/docs/kyc/uqudo-sdk/integration/ios/prepare-environment.md)
2. [Call the uqudo SDK from your iOS app](/docs/kyc/uqudo-sdk/integration/ios/face-session-flow.md)
3. [Process the result](/docs/kyc/uqudo-sdk/sdk-result/validation-and-parsing.md)

For example code, please visit Uqudo's GitHub repository. We provide examples for both [Swift ](https://github.com/uqudo-com/sample-app-ios-swift)and [Objective-C](https://github.com/uqudo-com/sample-app-ios-objectivec).

</details>

<details>

<summary>Web</summary>

1. [Initialise uqudo's Web SDK](/docs/kyc/uqudo-sdk/integration/web.md)
2. [Call the uqudo SDK from your website](/docs/kyc/uqudo-sdk/integration/web/face-session-flow.md)
3. [Process the result](/docs/kyc/uqudo-sdk/sdk-result/validation-and-parsing.md)

For example code, please visit [Uqudo's GitHub repository](https://github.com/uqudo-com/sample-app-web-javascript).

</details>

<details>

<summary>Capacitor</summary>

1. [Install uqudo's Capacitor plugin](/docs/kyc/uqudo-sdk/integration/capacitor/plugin-installation.md)
2. [Call the uqudo SDK from your Capacitor app](/docs/kyc/uqudo-sdk/integration/capacitor/face-session-flow.md)
3. [Process the result](/docs/kyc/uqudo-sdk/sdk-result/validation-and-parsing.md)

For example code, please visit [Uqudo's GitHub repository](https://github.com/uqudo-com/sample-app-capacitor).

</details>

<details>

<summary>Cordova</summary>

1. [Install uqudo's Cordova plugin](/docs/kyc/uqudo-sdk/integration/cordova/plugin-installation.md)
2. [Call the uqudo SDK from your Cordova app](/docs/kyc/uqudo-sdk/integration/cordova/face-session-flow.md)
3. [Process the result](/docs/kyc/uqudo-sdk/sdk-result/validation-and-parsing.md)

For example code, please visit [Uqudo's GitHub repository](https://github.com/uqudo-com/sample-app-cordova).

</details>

<details>

<summary>Flutter</summary>

1. [Install uqudo's Flutter plugin](/docs/kyc/uqudo-sdk/integration/flutter/plugin-installation.md)
2. [Call the uqudo SDK from your Flutter app](/docs/kyc/uqudo-sdk/integration/flutter/face-session-flow.md)
3. [Process the result](/docs/kyc/uqudo-sdk/sdk-result/validation-and-parsing.md)

For example code, please visit [Uqudo's GitHub repository](https://github.com/uqudo-com/sample-app-flutter).

</details>

<details>

<summary>React Native</summary>

1. [Install uqudo's React Native plugin](/docs/kyc/uqudo-sdk/integration/react-native/plugin-installation.md)
2. [Call the SDK from your React Native app](/docs/kyc/uqudo-sdk/integration/react-native/face-session-flow.md)
3. [Process the result](/docs/kyc/uqudo-sdk/sdk-result/validation-and-parsing.md)

For example code, please visit [Uqudo's GitHub repository](https://github.com/uqudo-com/sample-app-react).

</details>

<details>

<summary>Xamarin</summary>

1. [Install uqudo's Xamarin plugin](/docs/kyc/uqudo-sdk/integration/dotnet/plugin-installation.md)
2. [Call the SDK from your Xamarin app](/docs/kyc/uqudo-sdk/integration/dotnet/face-session-flow.md)
3. [Process the result](/docs/kyc/uqudo-sdk/sdk-result/validation-and-parsing.md)

For example code, please visit [Uqudo's GitHub repository](https://github.com/uqudo-com/sample-app-xamarin).

</details>