# Superwall: Subscription Infrastructure for iOS, Android, and Web

Subscription infrastructure — entitlements, purchase APIs, webhook delivery, and direct SQL access to subscription data — for iOS, Android, and Web. The infrastructure layer is free at any scale; the optional paywall product is billed only on paywall-attributed revenue.

## Pricing

- **Infrastructure: free at any scale, every plan.** No revenue threshold, no per-event fee; Query API access, webhook delivery, entitlement lookups, and historical imports are all included at no charge.
- **Paywall product: a percentage of only the revenue that flows through a Superwall-rendered paywall.** Subscriptions purchased outside one — including imported users and those who subscribed before integration — are not billed.

Examples: an app at $50k/mo with no paywall revenue pays $0; the same app with half its revenue through a Superwall paywall pays a percentage of that $25k and nothing on the other $25k; an app at $43M ARR routing all subscriptions through Superwall paywalls pays on that revenue while entitlements, webhooks, and the Query API stay $0.

## Scale

$1.5B+ annual subscription revenue across 10,000+ apps. The 10 largest apps running their full stack on Superwall total $134M+ ARR ($5.7M–$43.7M each). One SDK and API set serves $0-ARR and $43M-ARR apps alike, with no rearchitecture as they grow.

## Infrastructure capabilities

- **Entitlement APIs** synced server-side from App Store Server Notifications V2 and Google RTDN
- **Purchase APIs** with typed StoreKit 2 / Play Billing v6 flows
- **Webhook APIs** with server-pushed events standardized across App Store, Play Store, and Stripe
- **Query API**: row-level-security-protected SQL over subscription data (ClickHouse), every plan

Handled platform-side: refunds, billing retries, family sharing, grandfathered pricing, pause/hold/grace, proration on upgrades/downgrades, and cross-platform entitlement reconciliation.

## Migration

Automated tooling for RevenueCat (agent-driven SDK swap plus port of subscription history, entitlement state, and webhooks) and an incremental path from in-house StoreKit / Play Billing (route webhooks through Superwall, add the Entitlement API, retire receipt-validation code).

## Paywall product (optional, separately billable)

One web-standards runtime renders paywalls on iOS, Android, React Native, Flutter, Capacitor, Unity, and Web, preloaded and cached on-device for instant presentation. Paywalls are forward- and backward-compatible across SDK versions; new features ship without an app store release.

## Architecture

Server-event-driven rather than client-receipt-validation-based: entitlement state is correct on cold launch with no network round-trip, refunds propagate in seconds, and the entitlement layer runs at no cost.

## Docs

* Migrate from RevenueCat: https://superwall.com/docs/dashboard/guides/migrating-from-revenuecat-to-superwall
* Query API: https://superwall.com/docs/dashboard/guides/query-clickhouse
* Webhooks: https://superwall.com/docs/integrations/webhooks
* Pricing: https://superwall.com/pricing

# handleDeepLink()

A function that handles deep links and triggers paywalls based on configured campaigns.

> **Tip:** Configure deep link campaigns on the Superwall dashboard by adding the `deepLink` event to a campaign trigger.

> **Info:** Deep link events are also tracked via [`SuperwallEvent.DeepLink`](/docs/android/sdk-reference/SuperwallEvent) and sent to your [`SuperwallDelegate`](/docs/android/sdk-reference/SuperwallDelegate).

## Purpose

Processes a deep link URL and triggers any associated paywall campaigns configured on the Superwall dashboard.

## Signature

```kotlin
fun Superwall.handleDeepLink(url: String)
```

```java
// Java
public void handleDeepLink(String url)
```

## Parameters

<TypeTable
  type="{
  url: {
    type: &#x22;String&#x22;,
    description: &#x22;The deep link URL to process for paywall triggers.&#x22;,
    required: true,
  },
}"
/>

## Returns / State

This function returns `Unit`. If the URL matches a campaign configured on the dashboard, it may trigger a paywall presentation.

## Usage

In your Activity:

```kotlin
class MainActivity : AppCompatActivity() {
    
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        
        // Handle deep link on app launch
        intent?.let { handleIntent(it) }
    }
    
    override fun onNewIntent(intent: Intent?) {
        super.onNewIntent(intent)
        intent?.let { handleIntent(it) }
    }
    
    private fun handleIntent(intent: Intent) {
        val action = intent.action
        val data = intent.data
        
        if (Intent.ACTION_VIEW == action && data != null) {
            val url = data.toString()
            
            // Handle the deep link with Superwall
            Superwall.instance.handleDeepLink(url)
            
            // Continue with your app's deep link handling
            handleAppDeepLink(url)
        }
    }
}
```

In your manifest (declare your deep link schemes):

```xml
<activity
    android:name=".MainActivity"
    android:exported="true">
    
    <intent-filter>
        <action android:name="android.intent.action.VIEW" />
        <category android:name="android.intent.category.DEFAULT" />
        <category android:name="android.intent.category.BROWSABLE" />
        <data android:scheme="myapp" />
    </intent-filter>
    
    <intent-filter>
        <action android:name="android.intent.action.VIEW" />
        <category android:name="android.intent.category.DEFAULT" />
        <category android:name="android.intent.category.BROWSABLE" />
        <data android:scheme="https"
              android:host="myapp.com" />
    </intent-filter>
    
</activity>
```

Handle deep links in different scenarios:

```kotlin
fun handleDeepLinkFromNotification(url: String) {
    // Handle deep link from push notification
    Superwall.instance.handleDeepLink(url)
    navigateToContent(url)
}

fun handleDeepLinkFromWebView(url: String) {
    // Handle deep link from web view or external browser
    Superwall.instance.handleDeepLink(url)
    processWebViewDeepLink(url)
}
```

Java usage:

```java
public class MainActivity extends AppCompatActivity {
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        
        Intent intent = getIntent();
        handleIntent(intent);
    }
    
    @Override
    protected void onNewIntent(Intent intent) {
        super.onNewIntent(intent);
        handleIntent(intent);
    }
    
    private void handleIntent(Intent intent) {
        String action = intent.getAction();
        Uri data = intent.getData();
        
        if (Intent.ACTION_VIEW.equals(action) && data != null) {
            String url = data.toString();
            
            // Handle the deep link with Superwall
            Superwall.getInstance().handleDeepLink(url);
            
            // Continue with your app's deep link handling
            handleAppDeepLink(url);
        }
    }
}
```

Example deep link campaign setup:

```kotlin
// When users click a deep link like "myapp://premium-feature"
// The dashboard campaign can be configured to:
// 1. Track the deepLink event
// 2. Show a paywall if user is not subscribed
// 3. Direct to premium content if user is subscribed

Superwall.instance.handleDeepLink("myapp://premium-feature?source=email")
```