# 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

# Using Expo SDK in Bare React Native Apps

Install Superwall's Expo SDK in existing React Native projects without Expo

This guide is for React Native developers who want to integrate Superwall for the first time using our Expo SDK, even though their project doesn't use Expo.

> **Note:** **This doesn't sound like you?**- **Expo project** → Use the standard [installation guide](/docs/expo/quickstart/install)
> - **React Native app with existing Superwall SDK** → See our [migration guide](/docs/expo/guides/migrating-react-native)

## What are Expo Modules?

Expo Modules allow you to use Expo SDK packages in any React Native project, even if you're not using Expo as your development framework. This means bare React Native apps can benefit from Expo's ecosystem while maintaining their existing project structure.

Superwall's Expo SDK (`expo-superwall`) is now our recommended SDK for all React Native projects. By installing Expo Modules in your bare React Native app, you can use our latest SDK with the best features and support.

## Prerequisites

Before starting, ensure you have:

* A React Native project (compatible with React Native 0.79+)
* iOS deployment target set to the greater of 15.1 and your installed Expo SDK's minimum. For Expo SDK 56 and newer, use 16.4 or higher.
* Android minimum SDK version 21 or higher
* Node.js 18 or newer

## Step 1: Install Expo Modules

First, you need to install Expo modules in your React Native project. This allows you to use any Expo SDK package, including `expo-superwall`.

> **Note:** For comprehensive installation details, refer to [Expo's official guide](https://docs.expo.dev/bare/installing-expo-modules/)

### Automatic Installation (Recommended)

Run the following command in your project root:

```bash
npx install-expo-modules@latest
```

This command automatically configures your iOS and Android projects to support Expo modules.

### Manual Installation (If Automatic Fails)

If the automatic installation doesn't work (common in highly customized projects), follow these steps:

1. Install the expo package:

```bash
npm install expo
```

2. Configure your iOS project:
   * Set the iOS deployment target in Xcode to the greater of 15.1 and your installed Expo SDK's minimum. For Expo SDK 56 and newer, use 16.4 or higher.
   * Update your `AppDelegate` files as per [Expo's manual instructions](https://docs.expo.dev/bare/installing-expo-modules/#manual-installation)
   * Run `npx pod-install` to install iOS dependencies

3. Configure your Android project:
   * Update `android/settings.gradle` and `android/app/build.gradle`
   * Follow the Android configuration steps in [Expo's guide](https://docs.expo.dev/bare/installing-expo-modules/#manual-installation)

## Step 2: Install Superwall Expo SDK

Once Expo modules are configured, install the Superwall SDK:

## Tab

```bash npm
npm install expo-superwall
```

## Tab

```bash yarn
yarn add expo-superwall
```

## Tab

```bash pnpm
pnpm add expo-superwall
```

## Tab

```bash bun
bun add expo-superwall
```

## Step 3: Platform-Specific Configuration

### iOS Configuration

After installing the SDK, run:

```bash
cd ios && pod install
```

### Android Configuration

Ensure your `android/app/build.gradle` has:

```groovy gradle
android {
    compileSdkVersion 34
    
    defaultConfig {
        minSdkVersion 21
        targetSdkVersion 34
    }
}
```

## Troubleshooting

If you encounter any issues during installation, refer to [Expo's installation guide](https://docs.expo.dev/bare/installing-expo-modules/) for detailed troubleshooting steps and platform-specific configuration details.

## What's Next?

Continue with the [Superwall configuration guide](/docs/expo/quickstart/configure) to complete your setup.