LogoLogo
Useful links
  • Home
  • Product guides
  • API
  • SDKs
  • Overview
  • First steps
  • ANDROID
    • Getting Started with the SDK
    • Standalone Modules
      • Document Detector
        • Release Notes
        • Current Version
        • Requirements
        • Gradle Dependencies
        • Gradle Source Code
        • Setting up the SDK
          • Setting properties
          • Capture Stages
          • Messages Settings
          • Customization
          • Security Settings
          • Detection Steps
          • Upload Mode
          • Advanced Settings
            • Proxy configuration
            • Preview configuration
        • Start Document Detection
        • Source Code
        • Google security form
        • Reduce SDKs size
        • SDKs response
        • References
        • FAQ
      • Face Liveness
        • Release Notes
        • Current Version
        • Requirements
        • Gradle Dependencies
        • Gradle Source Code
        • SDK Lifecycle
        • Building the SDK
        • Start Liveness Verification
        • Source Code
        • References
        • Advanced Features
        • FAQ
      • Face Authenticator
        • Release Notes
      • Smart Auth
        • Release Notes
        • Current Version
        • Requirements
        • Gradle Dependencies
        • Gradle Source Code
        • Permissions
        • SDK Lifecycle
        • Building the SDK
        • Start Smart Authentication
        • Source Code
        • References
        • FAQ
      • Face Liveness (deprecated)
        • Release Notes
  • iOS
    • Getting Started with the SDK
    • Standalone Modules
      • Document Detector
        • Release Notes
        • Current Version
        • Requirements
        • Installing the SDK
        • Setting up the SDK
          • Setting properties
          • Messages Settings
          • Customization
          • Detection Steps
          • Upload Mode
          • Advanced Settings
            • Proxy configuration
            • Preview configuration
        • Start Document Detection
        • References
        • FAQ
      • Face Liveness
        • Release Notes
        • Installation
        • Current Version
        • Requirements
        • SDK Lifecycle
        • Building the SDK
        • Start Liveness Verification
        • Source Code
        • References
        • FAQ
      • Face Authenticator
        • Release Notes
        • Installation
        • Current Version
        • Requirements
        • Building the SDK
        • Start the SDK
        • References
        • FAQ
      • Smart Auth
        • Release Notes
        • Installation
        • Current Version
        • Requirements
        • SDK Lifecycle
        • Building the SDK
        • Start Smart Authentication
        • Source Code
        • References
        • FAQ
      • Face Liveness (deprecated)
        • Release Notes
  • REACT NATIVE
    • Standalone Modules
      • Document Detector
        • Release Notes
        • Current Version
        • Requirements
        • Installation
        • Hooks
        • Start Document Verification
        • Source Code
        • TypeScript References
        • Customizing Style
        • FAQ
      • Face Liveness
        • Release Notes
        • Current Version
        • Requirements
        • Installation
        • Hooks
        • Start Liveness Verification
        • Source Code
        • TypeScript References
        • FAQ
      • Face Authenticator
        • Release Notes
        • Current Version
        • Requirements
        • Installation
        • Hooks
        • Start Authentication Verification
        • Source Code
        • TypeScript References
        • FAQ
      • Smart Auth
        • Getting started
        • Release notes
        • Using Native Modules
          • Requirements
          • Gradle Source Code
          • Podfile Source Code
          • Native Module Android
          • Native Module iOS
          • Import Native Modules
          • Source Code
          • TypeScript References
          • FAQ
        • Using Expo Modules
          • Requirements
          • Create Local Expo Module
          • Gradle Source Code
          • Podspec Source Code
          • Native Module Android
          • Native Module iOS
          • Import Expo Modules
          • Source Code
          • TypeScript References
          • FAQ
  • WEB (JAVASCRIPT)
    • Standalone Modules
      • Document Detector
        • Getting started
        • SDK builder options
          • Analytics
          • Appearance
          • Messages
        • SDK methods
        • Event listeners
        • Customization
        • Release notes
      • Face Liveness
        • Customization
        • Release notes
      • Face Authenticator
        • Customization
        • Release notes
      • Smart Auth
        • SDK errors
        • Customization
        • Release notes
LogoLogo

2025 © Caf. - All rights reserved

On this page
  • 1. What is the CAF Face Liveness SDK and what is its main functionality?
  • 2. What are the system requirements for the CAF Face Liveness SDK on iOS?
  • 3. What permissions are required to use the SDK?
  • 4. How do I integrate the CAF Face Liveness SDK into my iOS project?
  • 5. What is the current version of the SDK, and where can I find version-specific details?
  • 6. How do I start the Face Liveness verification process in my app?
  • 7. What are the typical errors or issues that could occur, and how can I troubleshoot them?
  1. iOS
  2. Standalone Modules
  3. Face Liveness

FAQ

Last updated 2 months ago


1. What is the CAF Face Liveness SDK and what is its main functionality?

Answer:

The CAF Face Liveness SDK provides a solution for verifying whether the face captured by a mobile device's camera is from a live person and not a photo, video, or other forms of spoofing. It’s widely used in scenarios where identity verification is crucial, such as KYC (Know Your Customer), fraud prevention, and secure access.


2. What are the system requirements for the CAF Face Liveness SDK on iOS?

Answer:

The SDK supports iOS 13.0 and above, ensuring compatibility with modern iOS devices. Your iOS project should meet the minimum target of iOS 13.0.

For more requirement details, such as Xcode and Swift versions, please refer to the .


3. What permissions are required to use the SDK?

Answer:

The SDK requires the following permissions:

  • Camera access (NSCameraUsageDescription in Info.plist)

  • Internet access (NSAppTransportSecurity for network requests, if necessary)

Ensure these permissions are properly declared in your app's Info.plist file and handle permission requests appropriately.


4. How do I integrate the CAF Face Liveness SDK into my iOS project?

Answer:

To integrate the SDK:

  1. Add the SDK framework to your Xcode project.

  2. Configure necessary permissions for the camera and internet access in your app’s Info.plist.

  3. Initialize the SDK in your application's lifecycle, typically within viewDidLoad() of your main view controller.


5. What is the current version of the SDK, and where can I find version-specific details?

Answer:


6. How do I start the Face Liveness verification process in my app?

Answer:

To start the liveness check, follow these steps:

  1. Build the liveness session using the SDK’s builder.

  2. Start the liveness verification by calling the startSDK() method.

  3. Capture the result in the delegate methods.


7. What are the typical errors or issues that could occur, and how can I troubleshoot them?

Answer:

Some common errors include:

  • Camera permission not granted: Ensure your app requests the necessary permissions at runtime.

  • SDK initialization failure: Check your SDK setup and ensure it is properly initialized in the app lifecycle.

  • Network errors: Ensure the device has an active internet connection for the liveness check to succeed.

For detailed instructions, please refer to the

The current version of the SDK is regularly updated. You can find the latest version information, including changelogs and version-specific details, .

For more details on how to initiate the process, refer to the .

For more troubleshooting details, refer to the .

Requirements section
Builder setup section
here
Start SDK section
References section