> ## Documentation Index
> Fetch the complete documentation index at: https://docs.joinmassive.com/llms.txt
> Use this file to discover all available pages before exploring further.

# How do I initialize the Massive SDK on iOS?

Use the following code:

```swift theme={null}
MassiveClient.shared.initAsync(apiToken: {API_TOKEN}) { status in
    switch status {
    case .initialized:
        // Handle successful initialization 
    case .error:
        // Handle initialization error
    }
}
```

Learn more: [iOS Integration Guide](https://docs.joinmassive.com/monetization-sdk/mobile-ios#integration-to-the-app).