# 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

# getCustomerInfo()

Gets the latest customer information including subscriptions, transactions, and entitlements.

## Purpose

Retrieves the most up-to-date customer information including subscription transactions, non-subscription transactions, entitlements, and user ID. This is useful for displaying subscription status, checking entitlements, or syncing with other services.

## Signature

```dart
Future<CustomerInfo> getCustomerInfo()
```

## Returns / State

Returns a `Future<CustomerInfo>` containing:

* `subscriptions` - List of subscription transactions
* `nonSubscriptions` - List of non-subscription transactions (consumables, non-consumables)
* `entitlements` - List of all entitlements available to the user
* `userId` - The ID of the user

## Usage

Getting customer info:

```dart
final customerInfo = await Superwall.shared.getCustomerInfo();

print('User ID: ${customerInfo.userId}');
print('Active subscriptions: ${customerInfo.subscriptions.length}');
print('Entitlements: ${customerInfo.entitlements.length}');
```

Checking for specific entitlements:

```dart
final customerInfo = await Superwall.shared.getCustomerInfo();

final hasPremium = customerInfo.entitlements.any(
  (entitlement) => entitlement.id == 'premium' && entitlement.isActive,
);

if (hasPremium) {
  print('User has premium access');
}
```

Accessing subscription transactions:

```dart
final customerInfo = await Superwall.shared.getCustomerInfo();

for (final subscription in customerInfo.subscriptions) {
  print('Product: ${subscription.productId}');
  print('Active: ${subscription.isActive}');
  print('Will renew: ${subscription.willRenew}');
  if (subscription.expirationDate != null) {
    print('Expires: ${subscription.expirationDate}');
  }
}
```

## Related

* [`CustomerInfo`](/docs/flutter/sdk-reference/CustomerInfo) - The customer information class
* [`getEntitlements()`](/docs/flutter/sdk-reference/getEntitlements) - Gets entitlements directly
* [`subscriptionStatus`](/docs/flutter/sdk-reference/subscriptionStatus) - Stream of subscription status changes