LaunchPaywall – Open-source Swift 6 boilerplate for iOS paywalls and auth

LaunchPaywall is an open-source Swift 6 boilerplate designed to simplify creating iOS paywalls and authentication systems. Created by the developer to eliminate the tedious task of repeatedly implementing these features for each new side project, LaunchPaywall is built on modern Swift 6 concurrency and follows strict concurrency guidelines, utilizing @observable, @Environment, and @MainActor for state management.

The platform integrates RevenueCat v5 for handling paywalls, package purchases, purchase restoration, and identity syncing, providing a local mock state for Xcode testing without needing active network calls or StoreKit credentials. Authentication is streamlined with a native Sign in with Apple flow, backed by Keychain persistence through the Security API.

The platform supports localization with Apple’s String Catalog (.xcstrings), offering pre-translated content in six languages – English, Spanish, German, French, Italian, and Portuguese.

The architecture is modular, separating the AuthManager and SubscriptionManager components. This decoupling means users can choose to exclude modules they don’t need from their application, such as accounts or subscriptions, without disrupting the UI dependencies. Additionally, the repository includes a CHECKLIST.md detailing necessary capability setup, RevenueCat entitlements, shared secrets, and guidance for StoreKit testing.

While the core boilerplate remains freely available under the MIT license, the creator is also developing a Pro extension with additional paywall layout variations and parametric theme controls, which will be offered for a one-time purchase. Interested developers can access the repository at https://github.com/launchapp-studio/launchpaywall-ios and provide feedback on the Swift 6 concurrency architecture, module decoupling, or any features they wish to see included.