> ## Documentation Index
> Fetch the complete documentation index at: https://launchdarkly-preview.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Set up iOS SDK

> Install and initialize the LaunchDarkly iOS SDK

> For the complete documentation index, see [llms.txt](/llms.txt). For the full documentation snapshot, see [llms-full.txt](/llms-full.txt).

<div>
  <ReadmeButton sdk={SDK.iOS} />

  <CursorButton sdk={SDK.iOS} />
</div>

### Install the package

<CodeGroup>
  ```swift title={"Swift"} theme={null}
    //...
        dependencies: [
            .package(url: "https://github.com/launchdarkly/ios-client-sdk.git", .upToNextMajor("9.15.0")),
       ],
        targets: [
            .target(
                name: "YOUR_TARGET",
                dependencies: ["LaunchDarkly"]
            )
        ],
    //...

  ```

  ```ruby title={"Podfile"} theme={null}
    use_frameworks!
    target 'YourTargetName' do
      pod 'LaunchDarkly', '~> 9.15'
    end

  ```

  ```swift title={"Cartfile"} theme={null}
    github "launchdarkly/ios-client-sdk" ~> 9.15

  ```
</CodeGroup>

### Initialize the SDK

```swift title={"iOS SDK initialization"} theme={null}
import LaunchDarkly

let config = LDConfig(mobileKey: "YOUR_MOBILE_KEY", autoEnvAttributes: .enabled)

// A "context" is a data object representing users, devices, organizations, and other entities.
let contextBuilder = LDContextBuilder(key: "EXAMPLE_CONTEXT_KEY")
guard case .success(let context) = contextBuilder.build()
else { return }

LDClient.start(config: config, context: context, startWaitSeconds: 5) { timedOut in
    if timedOut {
        print("SDK didn't initialize in 5 seconds.  SDK is still running and trying to get latest flags.")
    } else {
        print("SDK successfully initialized with the latest flags")
    }
}

print("SDK started.")

```

<Accordion title="Finding your SDK credentials">
  You can find your server-side SDK key, client-side ID, and mobile key in the "Resources" section of the help menu. Click the **help icon** at the bottom left corner of the LaunchDarkly UI, then choose **SDK keys**:

  <Frame caption="The SDK keys option in the help menu.">
    ![The SDK keys option in the help menu.](https://files.buildwithfern.com/https://launchdarkly.docs.buildwithfern.com/docs/28d3e1c568378ea02528db7ba62bfbd742f6f1cad964b5675395e10af5eeeb60/assets/images/auto/help-menu-sdk-keys.auto.png)
  </Frame>
</Accordion>

To learn more, read [Initialize the client](/sdk/client-side/ios#initialize-the-client) in the iOS SDK reference guide.