# 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

# 3rd Party Analytics

### Hooking up Superwall events to 3rd party tools

SuperwallKit automatically tracks some internal events. You can [view the list of events here](/docs/sdk/guides/3rd-party-analytics/tracking-analytics). We encourage you to also track them in your own analytics by implementing the [Superwall delegate](/docs/sdk/guides/using-superwall-delegate). Using the `handleSuperwallEvent(withInfo:)` function, you can forward events to your analytics service:

:::ios
## Tab

```swift Swift
extension SuperwallService: SuperwallDelegate {
  func handleSuperwallEvent(withInfo eventInfo: SuperwallEventInfo) {
    print("analytics event called", eventInfo.event.description)
    MyAnalyticsService.shared.track(
      event: eventInfo.event.description,
      params: eventInfo.params
    )
  }
}
```

## Tab

```swift Objective-C
- (void)handleSuperwallEventWithInfo:(SWKSuperwallEventInfo *)info {
  NSLog(@"Analytics event called %@", info.event.description));
  [[MyAnalyticsService shared] trackEvent:info.event.description params:info.params];
}
```

:::

<br />

> **Note:** You might also want to set user attribute to allow for
> [Cohorting in 3rd Party Tools](/docs/sdk/guides/3rd-party-analytics/cohorting-in-3rd-party-tools).

Alternatively, if you want typed versions of all these events with associated values, you can access them via `eventInfo.event`:

:::ios
```swift
func handleSuperwallEvent(withInfo eventInfo: SuperwallEventInfo)  {
  switch eventInfo.event {
    case .firstSeen:
      break
    case .appOpen:
      break
    case .appLaunch:
      break
    case .identityAlias:
      break
    case .appInstall:
      break
    case .sessionStart:
      break
    case .deviceAttributes(let attributes):
      break
    case .subscriptionStatusDidChange:
      break
    case .appClose:
      break
    case .deepLink(let url):
      break
    case .triggerFire(let placementName, let result):
      break
    case .paywallOpen(let paywallInfo):
      break
    case .paywallClose(let paywallInfo):
      break
    case .paywallDecline(let paywallInfo):
      break
    case .transactionStart(let product, let paywallInfo):
      break
    case .transactionFail(let error, let paywallInfo):
      break
    case .transactionAbandon(let product, let paywallInfo):
      break
    case .transactionComplete(let transaction, let product, let type, let paywallInfo):
      break
    case .subscriptionStart(let product, let paywallInfo):
      break
    case .freeTrialStart(let product, let paywallInfo):
      break
    case .transactionRestore(let restoreType, let paywallInfo):
      break
    case .transactionTimeout(let paywallInfo):
      break
    case .userAttributes(let atts):
      break
    case .nonRecurringProductPurchase(let product, let paywallInfo):
      break
    case .paywallResponseLoadStart(let triggeredPlacementName):
      break
    case .paywallResponseLoadNotFound(let triggeredPlacementName):
      break
    case .paywallResponseLoadFail(let triggeredPlacementName):
      break
    case .paywallResponseLoadComplete(let triggeredPlacementName, let paywallInfo):
      break
    case .paywallWebviewLoadStart(let paywallInfo):
      break
    case .paywallWebviewLoadFail(let paywallInfo):
      break
    case .paywallWebviewLoadComplete(let paywallInfo):
      break
    case .paywallWebviewLoadTimeout(let paywallInfo):
      break
    case .paywallWebviewLoadFallback(let paywallInfo):
      break
    case .paywallWebviewProcessTerminated(let paywallInfo):
      break
    case .paywallProductsLoadStart(let triggeredPlacementName, let paywallInfo):
      break
    case .paywallProductsLoadFail(let triggeredPlacementName, let paywallInfo):
      break
    case .paywallProductsLoadComplete(let triggeredPlacementName):
      break
    case .paywallProductsLoadRetry(let triggeredPlacementName, let paywallInfo, let attempt):
      break
    case .surveyResponse(let survey, let selectedOption, let customResponse, let paywallInfo):
      break
    case .paywallPresentationRequest(let status, let reason):
      break
    case .touchesBegan:
      break
    case .surveyClose:
      break
    case .reset:
      break
    case .restoreStart:
      break
    case .restoreFail(let message):
      break
    case .restoreComplete:
      break
    case .configRefresh:
      break
    case .customPlacement(let name, let params, let paywallInfo):
      break
    case .configAttributes:
      break
    case .confirmAllAssignments:
      break
    case .configFail:
      break
    case .adServicesTokenRequestStart:
      break
    case .adServicesTokenRequestFail(let error):
      break
    case .adServicesTokenRequestComplete(let token):
      break
    case .shimmerViewStart:
      break
    case .shimmerViewComplete:
      break
    }
}
```
:::

> **Info:** Wanting to use events to see which product was purchased on a paywall? Check out this
> [doc](/docs/sdk/guides/advanced/viewing-purchased-products).