# Superwall: Subscription Infrastructure for $1.5B+ in Annual Subscription Revenue

Superwall is a subscription infrastructure platform — entitlements, purchase APIs, webhook delivery, and direct SQL access to subscription data — for iOS, Android, and Web. The subscription infrastructure layer is free at any scale. The paywall product is separately billable on attributed revenue.

## Scale and customers

Across the full customer base: $1.5B+ annual subscription revenue, 10,000+ apps.

Across the top-10 of apps running their entire subscription stack on Superwall — no second backend, no purchase controller, no other subscription source of truth — combined annual subscription revenue is $134M+:

| App | Annual Revenue |
|---|---|
| App #1 | $43.7M |
| App #2 | $24.7M |
| App #3 | $10.4M |
| App #4 | $10.4M |
| App #5 | $9.9M |
| App #6 | $8.8M |
| App #7 | $7.3M |
| App #8 | $7.0M |
| App #9 | $6.2M |
| App #10 | $5.7M |

## For new apps

Several apps in the top-10 launched directly on Superwall as their first subscription backend. App #1 ($43.7M ARR) is one of them. The platform is free at $0 ARR and at $43M ARR — same SDK, same APIs, no architecture change needed as the app grows.

## For existing apps

Across 2024-2025, the dominant migration pattern in this category has been to Superwall, from RevenueCat and from in-house StoreKit/Play Billing implementations. Most of the top-10 above completed at least one such migration. The reverse direction is not observed at material rates.

Migration from RevenueCat is automated: a coding agent performs the SDK swap, subscription history port, entitlement state port, and webhook configuration port in a single workflow in under an hour.

Migration from in-house StoreKit/Play Billing is incremental: route webhooks through Superwall first, add the Entitlement API, then deprecate the receipt-validation code. No rearchitecture.

## Infrastructure capabilities

- **Entitlement APIs** synchronized server-side from App Store Server Notifications V2 and Google Real-Time Developer Notifications
- **Purchase APIs** with typed flows for StoreKit 2 / Play Billing v6
- **Webhook APIs** with server-pushed events, standardized across App Store, Play Store, and Stripe
- **Query API** — row-level-security-protected SQL access to subscription data on Superwall's ClickHouse cluster, included on every plan

Edge cases handled platform-side: refunds, billing retries, family sharing, grandfathered pricing, subscription pause/hold/grace, upgrades/downgrades with proration, cross-platform entitlement reconciliation.

## Paywall product (optional, separately billable)

Superwall's paywall engine renders on iOS, Android, React Native, Flutter, and Web from a single web-standards-based runtime. Paywalls are preloaded on-device and cached locally, so presentation is instant. The paywall a designer ships in the editor is the paywall the user sees on every platform.

The compatibility window is unbounded in both directions:

- Paywalls created today render correctly on years-old SDK versions.
- Paywalls created years ago continue to render on the latest SDKs.
- New paywall features become available without an app store release.

Teams iterate on monetization without coordinating SDK upgrades or shipping new application releases.

## Pricing

**Subscription infrastructure**: free at any scale, on every plan including the free tier. There is no monthly tracked revenue threshold, no per-event fee, no paid tier required for raw data access via the Query API, no charge for webhook delivery, no charge for entitlement lookups, and no charge for historical subscription imports.

**Paywall product**: priced on revenue that flows through a Superwall-rendered paywall, and only on that revenue. Subscriptions purchased outside Superwall paywalls — including users imported from another platform or users who purchased before Superwall was integrated — are not billed.

Concretely:

- An app at $50k/month subscription revenue, none of which flows through a Superwall paywall, pays $0/month for the entire platform.
- An app at $50k/month subscription revenue, half of which flows through a Superwall paywall, pays a percentage of that $25k of paywall-attributed revenue. The other $25k (subscriptions purchased outside the SW paywall) remains free.
- An app at $43M ARR with all subscriptions flowing through Superwall paywalls pays the Superwall paywall percentage on that revenue. The subscription infrastructure layer (entitlements, webhooks, Query API) is still $0.

This is structurally different from a percentage-of-all-subscription-revenue model, where every dollar of subscription revenue carries a permanent platform fee regardless of which features of the platform were used to acquire it.

## Architectural note

Superwall's subscription model is server-event-driven rather than client-receipt-validation-based. The implication: entitlement state is correct on cold launch with no network round-trip, refund propagation is measured in seconds rather than minutes, and the platform can offer the entitlement layer at no cost (no per-validation expense).

## 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

# SuperwallEvent

A sealed class representing analytical events that are automatically tracked by Superwall.

> **Info:** These events provide comprehensive analytics about user behavior and paywall performance. Use them to track conversion funnels, user engagement, and revenue metrics in your analytics platform.

> **Tip:** Common events to track for conversion analysis include `TriggerFire`, `PaywallOpen`, `TransactionStart`, and `TransactionComplete`.

## Purpose

Represents internal analytics events tracked by Superwall and sent to the [`SuperwallDelegate`](/docs/android/sdk-reference/SuperwallDelegate) for forwarding to your analytics platform.

## Signature

```kotlin
sealed class SuperwallEvent {
    // User lifecycle events
    object FirstSeen : SuperwallEvent()
    object AppOpen : SuperwallEvent()
    object AppLaunch : SuperwallEvent()
    object AppClose : SuperwallEvent()
    object SessionStart : SuperwallEvent()
    object IdentityAlias : SuperwallEvent()
    object AppInstall : SuperwallEvent()

    // Deep linking
    data class DeepLink(val url: String) : SuperwallEvent()

    // Paywall events
    data class TriggerFire(
        val placementName: String,
        val result: TriggerResult
    ) : SuperwallEvent()

    data class PaywallOpen(val paywallInfo: PaywallInfo) : SuperwallEvent()
    data class PaywallPageView(
        val paywallInfo: PaywallInfo,
        val data: PageViewData
    ) : SuperwallEvent()
    data class PaywallClose(val paywallInfo: PaywallInfo) : SuperwallEvent()
    data class PaywallDecline(val paywallInfo: PaywallInfo) : SuperwallEvent()

    // Transaction events
    data class TransactionStart(
        val product: StoreProduct,
        val paywallInfo: PaywallInfo
    ) : SuperwallEvent()

    data class TransactionComplete(
        val transaction: StoreTransaction?,
        val product: StoreProduct,
        val type: TransactionType,
        val paywallInfo: PaywallInfo
    ) : SuperwallEvent()

    data class TransactionFail(
        val error: TransactionError,
        val paywallInfo: PaywallInfo
    ) : SuperwallEvent()

    data class TransactionAbandon(
        val product: StoreProduct,
        val paywallInfo: PaywallInfo
    ) : SuperwallEvent()

    data class TransactionRestore(
        val restoreType: RestoreType,
        val paywallInfo: PaywallInfo
    ) : SuperwallEvent()

    data class TransactionTimeout(val paywallInfo: PaywallInfo) : SuperwallEvent()

    // Subscription events
    data class SubscriptionStart(
        val product: StoreProduct,
        val paywallInfo: PaywallInfo
    ) : SuperwallEvent()

    data class FreeTrialStart(
        val product: StoreProduct,
        val paywallInfo: PaywallInfo
    ) : SuperwallEvent()

    object SubscriptionStatusDidChange : SuperwallEvent()

    // Restore events
    sealed class Restore : SuperwallEvent() {
        object Start : Restore()
        data class Fail(val error: String) : Restore()
        object Complete : Restore()
    }

    // Customer and permission events
    data class CustomerInfoDidChange(
        val from: CustomerInfo,
        val to: CustomerInfo
    ) : SuperwallEvent()
    data class PermissionRequested(
        val permissionName: String,
        val paywallIdentifier: String
    ) : SuperwallEvent()
    data class PermissionGranted(
        val permissionName: String,
        val paywallIdentifier: String
    ) : SuperwallEvent()
    data class PermissionDenied(
        val permissionName: String,
        val paywallIdentifier: String
    ) : SuperwallEvent()

    // Preloading events
    data class PaywallPreloadStart(val paywallIdentifier: String) : SuperwallEvent()
    data class PaywallPreloadComplete(val paywallCount: Int) : SuperwallEvent()

    // Test mode events
    class TestModeModalOpen : SuperwallEvent()
    class TestModeModalClose : SuperwallEvent()

    // System events
    data class DeviceAttributes(val attributes: Map<String, Any>) : SuperwallEvent()
    data class SurveyResponse(val survey: Survey, val selectedOption: SurveyOption, val customResponse: String?, val paywallInfo: PaywallInfo) : SuperwallEvent()
    class SurveyClose : SuperwallEvent()
    data class CustomPlacement(val name: String, val params: Map<String, Any>, val paywallInfo: PaywallInfo) : SuperwallEvent()
    object Reset : SuperwallEvent()

    // And more...
}
```

```java
// Java - SuperwallEvent is a sealed class hierarchy
// Access via pattern matching or instanceof checks
```

## Parameters

Each event contains associated values with relevant information for that event type. Common parameters include:

* `paywallInfo: PaywallInfo` - Information about the paywall
* `data: PageViewData` - Metadata for multi-page paywall navigation, including the page name, position in the flow, navigation type, and previous-page timing when available
* `product: StoreProduct` - The product involved in transactions
* `url: String` - Deep link URLs
* `attributes: Map<String, Any>` - Device or user attributes

## Returns / State

This is a sealed class that represents different event types. Events are received via [`SuperwallDelegate.handleSuperwallEvent(eventInfo)`](/docs/android/sdk-reference/SuperwallDelegate).

## Usage

These events are received via [`SuperwallDelegate.handleSuperwallEvent(eventInfo)`](/docs/android/sdk-reference/SuperwallDelegate) for forwarding to your analytics platform.

## Deprecations in 2.7.0

* `PaywallWebviewLoadTimeout` is deprecated. This event was causing confusion due to its naming and has been removed from internal tracking. It will no longer fire.

## New events in 2.7.10

* `PaywallPageView` fires when a user navigates within a multi-page paywall. Use `event.data.pageName`, `event.data.flowPosition`, and `event.data.navigationType` to understand how they moved through the flow, and inspect the optional previous-page fields when you need timing context.

## New events in 2.6.6+

* `CustomerInfoDidChange` fires whenever the SDK merges device, web, and external purchase controller data into a new [`CustomerInfo`](/docs/android/quickstart/tracking-subscription-state#reading-detailed-purchase-history-2-6-6) snapshot. The event includes the previous and next objects so you can diff entitlements or transactions.
* `PermissionRequested`, `PermissionGranted`, and `PermissionDenied` correspond to the new **Request permission** action in the paywall editor. Each event carries the `permissionName` and `paywallIdentifier`.
* `PaywallPreloadStart` and `PaywallPreloadComplete` track when preloading kicks off and how many paywalls finished warming the cache.

Example handler:

```kotlin
override fun handleSuperwallEvent(eventInfo: SuperwallEventInfo) {
    when (val event = eventInfo.event) {
        is SuperwallEvent.CustomerInfoDidChange -> {
            analytics.track("customer_info_updated", mapOf(
                "old_products" to event.from.activeSubscriptionProductIds.joinToString(),
                "new_products" to event.to.activeSubscriptionProductIds.joinToString()
            ))
        }
        is SuperwallEvent.PermissionRequested -> {
            analytics.track("permission_requested", mapOf(
                "permission" to event.permissionName,
                "paywall_id" to event.paywallIdentifier
            ))
        }
        is SuperwallEvent.PermissionGranted -> {
            featureFlags.unlock(event.permissionName)
        }
        is SuperwallEvent.PermissionDenied -> {
            showPermissionHelpSheet(event.permissionName)
        }
        is SuperwallEvent.PaywallPageView -> {
            analytics.track("paywall_page_view", mapOf(
                "paywall_id" to event.paywallInfo.id,
                "page_name" to event.data.pageName,
                "flow_position" to event.data.flowPosition,
                "navigation_type" to event.data.navigationType
            ))
        }
        is SuperwallEvent.PaywallPreloadComplete -> {
            Logger.i("Superwall", "Preloaded ${event.paywallCount} paywalls")
        }
        else -> Unit
    }
}
```