# 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

# overrideProductsByName

Globally override products on any paywall by product name.

## Purpose

Allows you to globally override products on any paywall that have a given name. The key is the product name in the paywall, and the value is the product identifier to replace it with. This is useful for A/B testing different products or dynamically changing products based on user segments.

## Signature

```dart
// Setter
set overrideProductsByName(Map<String, String>? overrideProducts)

// Getter
Future<Map<String, String>?> getOverrideProductsByName()
```

## Parameters

<TypeTable
  type="{
  overrideProducts: {
    type: &#x22;Map<String, String>?&#x22;,
    description: &#x22;A map where keys are product names in paywalls (e.g., `\&#x22;primary\&#x22;`, `\&#x22;secondary\&#x22;`) and values are the product identifiers to replace them with (e.g., `\&#x22;com.example.premium_monthly\&#x22;`). Pass `null` to clear all overrides.&#x22;,
  },
}"
/>

## Returns / State

* **Setter**: Sets the global product overrides. Changes take effect immediately for all future paywall presentations.
* **Getter**: Returns a `Future<Map<String, String>?>` containing the current override mapping, or `null` if no overrides are set.

## Usage

Setting product overrides:

```dart
// Override products globally
Superwall.shared.overrideProductsByName = {
  'primary': 'com.example.premium_monthly',
  'secondary': 'com.example.premium_annual',
  'tertiary': 'com.example.premium_lifetime',
};

// All paywalls will now use these product identifiers
// instead of the ones configured in the dashboard
```

Clearing overrides:

```dart
// Clear all overrides
Superwall.shared.overrideProductsByName = null;
```

Getting current overrides:

```dart
final overrides = await Superwall.shared.getOverrideProductsByName();
if (overrides != null) {
  print('Current overrides: $overrides');
} else {
  print('No overrides set');
}
```

Dynamic overrides based on user segment:

```dart
void _setProductOverridesForUser(User user) {
  if (user.isPremium) {
    // Premium users get annual products
    Superwall.shared.overrideProductsByName = {
      'primary': 'com.example.premium_annual',
    };
  } else {
    // Regular users get monthly products
    Superwall.shared.overrideProductsByName = {
      'primary': 'com.example.premium_monthly',
    };
  }
}
```

A/B testing different products:

```dart
void _setupProductABTest() {
  final random = Random();
  if (random.nextBool()) {
    // Variant A: Monthly product
    Superwall.shared.overrideProductsByName = {
      'primary': 'com.example.premium_monthly',
    };
  } else {
    // Variant B: Annual product
    Superwall.shared.overrideProductsByName = {
      'primary': 'com.example.premium_annual',
    };
  }
}
```

## Notes

* Overrides apply globally to all paywalls that use the specified product names
* Overrides take effect immediately for all future paywall presentations
* You can also set overrides per-paywall using [`PaywallOptions.overrideProductsByName`](/docs/flutter/sdk-reference/PaywallOptions#overrideproductsbyname)
* Per-paywall overrides take precedence over global overrides

## Related

* [`PaywallOptions.overrideProductsByName`](/docs/flutter/sdk-reference/PaywallOptions) - Override products for a specific paywall
* [`PaywallOptions`](/docs/flutter/sdk-reference/PaywallOptions) - Paywall configuration options