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The Whop iOS SDK lets you integrate in-app purchases, subscription management, and chat directly into your iOS app. The SDK automatically uses Whop’s payment processing in the US (2.7% + $0.30 vs Apple’s 15-30%) and falls back to Apple’s StoreKit elsewhere for global coverage.

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What you can build

Build a Paywall

Display subscription plans and handle purchases in your app

Check Entitlements

Verify subscription status and gate premium content

Embedded Chat

Add Whop chat channels directly in your app

Embedded Payouts

Enable connected account payouts

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Quick example

Here’s a complete example showing the SDK in action: 
import SwiftUI
import WhopCheckout

@main
struct MyApp: App {
    var body: some Scene {
        WindowGroup {
            ContentView()
                .environment(Checkout.shared)
                .task {
                    try? await Checkout.shared.configure(
                        companyId: "biz_xxxxxxxxxxxxxx",
                        apiKey: "your_api_key_here",
                        planMappings: [
                            .init(whopId: "plan_xxxxx", appleId: "monthly_sub")
                        ]
                    )
                }
        }
    }
}

struct ContentView: View {
    @Environment(Checkout.self) var checkout

    var body: some View {
        if checkout.isSubscribed {
            Text("Welcome, premium user!")
        } else {
            Button("Upgrade to Premium") {
                Task {
                    try? await checkout.purchase("plan_xxxxx")
                }
            }
        }
    }
}

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Getting started

1

Install the SDK

Add the WhopCheckout package to your Xcode project via Swift Package Manager.Installation guide →
2

Get your API key

Create an API key with the iap:read permission in your Developer Settings.
3

Configure the SDK

Initialize the SDK with your company ID, API key, and plan mappings via Checkout.shared.configure().
4

Build your paywall

Display plans and handle purchases. The SDK automatically uses Whop checkout in the US and StoreKit elsewhere.Build a paywall →

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Reference

API Reference

Complete API documentation for all Checkout classes, methods, and types

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Requirements

  • iOS 17.0+
  • Xcode 15.0+
  • Swift 5.10+