> 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/expo-modules.md).

# Using Expo Modules

{% hint style="info" %}
This repository provides a Expo Modules for our native SDKs, for more informations refer the [Expo Modules](https://docs.expo.dev/modules/overview/). The dependencies currently in use are as follows:

See the current version for [Android](/caf-sdk/android/standalone-modules/cafsmartauth/current-version.md). See the current version for [iOS](/caf-sdk/ios/standalone-modules/cafsmartauth/current-version.md).

* Android: `io.caf.sdk:smart-auth:1.2.3`
* iOS: `CafSmartAuth', '1.2.0`

For more details and example code, refer to our [CafSmartAuth Expo Modules Repository](https://github.com/combateafraude/tree/main/caf-smart-auth-react-native-expo).
{% endhint %}

The CafSmartAuth SDK provides configurable policies, allowing you to integrate live facial verification, SMS and e-mail into your Android applications, offering a seamless and secure way to authenticate users.

## Terms & Policies

When using our SDKs, please make sure that you agree with our [Privacy Policy](https://en.caf.io/politicas/politicas-de-privacidade) and our [Terms and Conditions of Use](https://en.caf.io/politicas/termos-e-condicoes-de-uso).

## SDK Dependencies

CafSmartAuth leverages the following external SDKs:

### Android

| SDK                         | Version |
| --------------------------- | ------- |
| `Caf FaceLiveness`          | 4.1.1   |
| `iProov Biometrics Android` | 9.1.2   |
| `Fingerprint Pro Android`   | 2.7.0   |

* [iProov Biometrics Android](https://github.com/iProov/android): Enables the integration of live facial verification technology.
* [Fingerprint Pro Android](https://github.com/fingerprintjs/fingerprintjs-pro-android): Provides fingerprint authentication capabilities to enhance security features in your app.
* [Rudderstack](https://www.rudderstack.com/docs/): Provides user metrics to deliver trustworthy real-time data.

**Important:** If you plan to publish your app on the *Google Play Store*, you must complete a data safety form. Since we integrate with the *FingerPrintJS SDK*, you'll need to provide the following information:

| Question in Google Play Console's data safety form                  | Response                                    |
| ------------------------------------------------------------------- | ------------------------------------------- |
| Does your app collect or share any of the required user data types? | Yes.                                        |
| What type of data is collected?                                     | Device or other identifiers.                |
| Is this data collected, shared, or both?                            | Collected.                                  |
| Is this data processed ephemerally?                                 | Yes.                                        |
| Why is this user data collected?                                    | Fraud Prevention, Security, and Compliance. |

### iOS

| SDK                     | Version |
| ----------------------- | ------- |
| `FaceLiveness`          | 6.3.2   |
| `iProov Biometrics iOS` | 12.2.1  |
| `Fingerprint Pro iOS`   | 2.6.0   |
| `CafSolutions`          | 1.0.1   |

* [Faceliveness](https://github.com/combateafraude/Faceliveness): Enables the integration of live facial verification technology for secure user authentication.
* [iProov Biometrics iOS](https://github.com/iProov/ios): Dependency of Faceliveness SDK for facial verification
* [Fingerprint Pro iOS](https://github.com/fingerprintjs/fingerprintjs-pro-ios): Provides fingerprint authentication capabilities to enhance security in your app.
* [Rudderstack](https://www.rudderstack.com/docs/): Provides user metrics to deliver trustworthy real-time data.
* [CafSolutions](https://github.com/combateafraude/CafSolutions): Package of common solutions for the Caf\`s Framework

**Important:** If you plan to publish your app on the *Apple App Store*, you must include the SDK data usage in your App Store privacy disclosures. Since we integrate with the *FingerprintJS SDK*, here’s the information you need to provide:

| Privacy Disclosure in Apple App Store | Response                                   |
| ------------------------------------- | ------------------------------------------ |
| Data collected                        | Device or other identifiers                |
| Purpose                               | Fraud Prevention, Security, and Compliance |
| Usage type                            | Collected but not shared                   |
| Processing                            | Processed ephemerally                      |

### Runtime Permissions

#### Android

| Permission             | Reason                                                                                    | Required |
| ---------------------- | ----------------------------------------------------------------------------------------- | :------: |
| `CAMERA`               | Capturing the selfie in live facial verification policies.                                |     ✅    |
| `INTERNET`             | Internet connection is needed in order to the authentication workflow work.               |     ✅    |
| `ACCESS_FINE_LOCATION` | Provides precise location data, required for location-based services in the verification. |     ✅    |

#### iOS

| Permission                                         | Reason                                                     | Required |
| -------------------------------------------------- | ---------------------------------------------------------- | :------: |
| `Privacy - Camera Usage Description`               | Capturing the selfie in live facial verification policies. |     ✅    |
| `Privacy - Location When In Use Usage Description` | Capturing the selfie in live facial verification policies. |     ✅    |


---

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