# 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

# Entitlements

Container for all entitlements available to the user, organized by status.

## Purpose

Provides organized access to user entitlements with methods to filter and query them. Returned by [`getEntitlements()`](/docs/flutter/sdk-reference/getEntitlements).

## Signature

```dart
class Entitlements {
  final Set<Entitlement> active;
  final Set<Entitlement> inactive;
  final Set<Entitlement> all;
  final Set<Entitlement> web;
  
  Future<Set<Entitlement>> byProductIds(Set<String> productIds);
}
```

## Properties

<TypeTable
  type="{
  active: {
    type: &#x22;Set<Entitlement>&#x22;,
    description: &#x22;All active entitlements available to the user.&#x22;,
    required: true,
  },
  inactive: {
    type: &#x22;Set<Entitlement>&#x22;,
    description: &#x22;All inactive entitlements.&#x22;,
    required: true,
  },
  all: {
    type: &#x22;Set<Entitlement>&#x22;,
    description: &#x22;All entitlements (both active and inactive).&#x22;,
    required: true,
  },
  web: {
    type: &#x22;Set<Entitlement>&#x22;,
    description: &#x22;Entitlements from web checkout.&#x22;,
    required: true,
  },
}"
/>

## Methods

### byProductIds()

Filters entitlements by product IDs. Returns all entitlements that contain any of the specified product IDs.

**Signature:**

```dart
Future<Set<Entitlement>> byProductIds(Set<String> productIds)
```

**Parameters:**

* `productIds` - A set of product identifiers to search for

**Returns:** A future that resolves to a set of entitlements that contain any of the specified product IDs.

## Usage

Accessing different entitlement sets:

```dart
final entitlements = await Superwall.shared.getEntitlements();

// Check active entitlements
if (entitlements.active.isNotEmpty) {
  print('User has ${entitlements.active.length} active entitlements');
}

// Check web checkout entitlements
if (entitlements.web.isNotEmpty) {
  print('User has web checkout entitlements');
}
```

Filtering by product IDs:

```dart
final entitlements = await Superwall.shared.getEntitlements();

// Find entitlements for specific products
final premiumEntitlements = await entitlements.byProductIds({
  'premium_monthly',
  'premium_yearly',
  'premium_lifetime',
});

if (premiumEntitlements.isNotEmpty) {
  print('User has premium access');
  for (final entitlement in premiumEntitlements) {
    print('Premium entitlement: ${entitlement.id}');
  }
}
```

Checking for specific entitlement:

```dart
final entitlements = await Superwall.shared.getEntitlements();

final hasPro = entitlements.all.any(
  (entitlement) => entitlement.id == 'pro' && entitlement.isActive,
);

if (hasPro) {
  // User has pro access
  showProFeatures();
}
```

## Related

* [`getEntitlements()`](/docs/flutter/sdk-reference/getEntitlements) - Method to retrieve entitlements
* [`Entitlements`](/docs/flutter/sdk-reference/Entitlements) - Entitlement information