juanpe/purchases-ios

RevenueCat is a tool that takes the pain out of adding in-app purchases and subscriptions to your mobile app. Instead of wrestling with Apple's and Google's complex billing systems directly, you get a single, unified interface that handles the entire process, from showing products to processing payments and tracking who is actually subscribed. When a user buys something in your app, this open-source framework handles the conversation with Apple's StoreKit or Google Play Billing. More importantly, it validates that purchase on a backend server, which is a critical step to prevent fraud and ensure the payment actually went through. Beyond the transaction itself, the service keeps track of each customer's subscription status in real time. If a user renews, cancels, or gets a promotional subscription, the system updates accordingly. You can also manage your products and view business metrics like churn and revenue through an online dashboard. This is built for app founders, product managers, and developers who want to monetize their apps without building a custom billing infrastructure from scratch. For example, if you are launching a fitness app with a monthly subscription, you would use this to let users sign up, process their payment, and immediately unlock premium workouts. If that same user later logs in on an Android device, the service recognizes them and keeps their premium access active across platforms. The project itself is written entirely in Swift but remains compatible with older Objective-C codebases. It works across Apple's entire ecosystem, including iOS, iPadOS, macOS, tvOS, and watchOS. The framework also plays nicely with popular analytics and attribution tools, automatically forwarding enriched purchase events so your marketing and product teams can see exactly how users are converting. You can explore their included sample apps, like MagicWeather, to see exactly how it works in practice.