# 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

# getPresentationResult()

Check the outcome of a placement without presenting a paywall.

## Purpose

Retrieves the presentation result for a placement without presenting the paywall. Call this when you need to know whether a placement would show a paywall, send the user to a holdout, or fail due to missing configuration before you decide how to render UI.

## Signature

```kotlin
suspend fun Superwall.getPresentationResult(
  placement: String,
  params: Map<String, Any>? = null,
): Result<PresentationResult>
```

```kotlin
fun Superwall.getPresentationResultSync(
  placement: String,
  params: Map<String, Any>? = null,
): Result<PresentationResult>
```

> **Warning:** `getPresentationResultSync` blocks the calling thread. Prefer the suspend function inside a coroutine whenever possible.

## Parameters

<TypeTable
  type="{
  placement: {
    type: &#x22;String&#x22;,
    description: &#x22;The placement to evaluate.&#x22;,
    required: true,
  },
  params: {
    type: &#x22;Map<String, Any>?&#x22;,
    description: &#x22;Optional custom parameters that feed audience filters. Keys starting with `$` are dropped by the SDK. Nested maps or lists are ignored.&#x22;,
    default: &#x22;null&#x22;,
  },
}"
/>

## Returns / State

Returns a Kotlin `Result<PresentationResult>`.

* On success, the wrapped `PresentationResult` can be:
  * `PresentationResult.PlacementNotFound` – Placement is missing from any live campaign.
  * `PresentationResult.NoAudienceMatch` – No audience matched, so nothing would show.
  * `PresentationResult.Paywall(experiment)` – A paywall would be presented; inspect the `experiment`.
  * `PresentationResult.Holdout(experiment)` – The user is in a holdout group for that experiment.
  * `PresentationResult.PaywallNotAvailable` – The SDK could not present (no activity, already showing, offline, etc.).
* On failure, the `Result` contains the thrown exception (for example, the SDK is not configured yet). Inspect it with `exceptionOrNull()` or `onFailure`.

## Usage

```kotlin
lifecycleScope.launch {
  val result = Superwall.instance.getPresentationResult(
    placement = "premium_feature",
    params = mapOf("source" to "settings")
  )

  result
    .onSuccess { presentation ->
      when (presentation) {
        is PresentationResult.Paywall -> {
          logExperiment(presentation.experiment)
          showLockedState()
        }
        is PresentationResult.Holdout -> showHoldoutBanner()
        is PresentationResult.NoAudienceMatch -> unlockFeature()
        is PresentationResult.PlacementNotFound -> Timber.w("Missing placement configuration")
        is PresentationResult.PaywallNotAvailable -> showOfflineMessage()
      }
    }
    .onFailure { error ->
      Timber.e(error, "Unable to fetch presentation result")
    }
}
```

```kotlin
// Blocking usage (for example, inside a worker)
val result = Superwall.instance.getPresentationResultSync("premium_feature")
val presentation = result.getOrNull() ?: return
```

## Related

* [`register()`](/docs/android/sdk-reference/register) – Registers a placement and may present a paywall.
* [`SuperwallDelegate`](/docs/android/sdk-reference/SuperwallDelegate) – Receive callbacks when paywalls are presented.