RevenueCat Cross-Platform Subscription: iOS + Android Tek SDK

1// Package.swift
2.package(url: "https://github.com/RevenueCat/purchases-ios", from: "5.0.0")
3 
4// App start
5import RevenueCat
6 
7@main
8struct MyApp: App {
9    init() {
10        Purchases.logLevel = .debug
11        Purchases.configure(withAPIKey: "public_api_key_here")
12    }
13 
14    var body: some Scene {
15        WindowGroup {
16            ContentView()
17        }
18    }
19}

1struct PaywallView: View {
2    @State private var offerings: Offerings?
3 
4    var body: some View {
5        VStack {
6            if let package = offerings?.current?.package(identifier: "monthly") {
7                Button("Subscribe: \(package.storeProduct.localizedPriceString)") {
8                    Task {
9                        do {
10                            let result = try await Purchases.shared.purchase(package: package)
11                            if result.customerInfo.entitlements.active["pro"] != nil {
12                                // User is pro!
13                            }
14                        } catch { ... }
15                    }
16                }
17            }
18        }
19        .task {
20            offerings = try? await Purchases.shared.offerings()
21        }
22    }
23}

1// app/build.gradle.kts
2dependencies {
3    implementation("com.revenuecat.purchases:purchases:8.0.0")
4}
5 
6// Application class
7Purchases.configure(PurchasesConfiguration.Builder(context, "public_api_key").build())
8 
9// Purchase
10Purchases.sharedInstance.purchase(
11    PurchaseParams.Builder(activity, package).build(),
12    callback = object : PurchaseCallback {
13        override fun onCompleted(purchase: Purchase, customerInfo: CustomerInfo) {
14            if (customerInfo.entitlements["pro"]?.isActive == true) {
15                // User is pro!
16            }
17        }
18        override fun onError(error: PurchasesError, userCancelled: Boolean) { }
19    }
20)

1if let info = try? await Purchases.shared.customerInfo() {
2    if info.entitlements["pro"]?.isActive == true {
3        // Show pro features
4    }
5}

1let offerings = try? await Purchases.shared.offerings()
2 
3// "current" = default group (dashboard'da set)
4let current = offerings?.current
5 
6// Display packages
7current?.availablePackages.forEach { package in
8    print("\(package.identifier): \(package.storeProduct.localizedPriceString)")
9}
10 
11// Lookup specific
12let monthly = current?.package(identifier: "monthly")
13let annual = current?.package(identifier: "annual")

1import RevenueCatUI
2 
3struct MyPaywallView: View {
4    var body: some View {
5        PaywallView()
6            // Dashboard'dan design edilen paywall
7    }
8}

1// Node.js webhook handler
2app.post('/revenuecat-webhook', async (req, res) => {
3    const event = req.body.event;
4 
5    switch (event.type) {
6        case 'INITIAL_PURCHASE':
7            await grantProAccess(event.app_user_id, event.product_id);
8            break;
9        case 'RENEWAL':
10            await extendAccess(event.app_user_id);
11            break;
12        case 'CANCELLATION':
13            await markCancelled(event.app_user_id);
14            break;
15        case 'REFUND':
16            await revokeAccess(event.app_user_id);
17            break;
18        case 'EXPIRATION':
19            await expireAccess(event.app_user_id);
20            break;
21    }
22 
23    res.status(200).send('OK');
24});

1Kullanılmalı eğer:
2  - MRR < $50k (self-build maliyeti hala değer değil)
3  - iOS + Android aynı codebase
4  - Küçük team (< 5 dev)
5  - A/B pricing experiment yapmayı planlıyorsun
6  - Cross-device restore important
7  - Developer time scarce
8 
9Self-build düşünülebilir eğer:
10  - MRR > $50k (ekonomik)
11  - Complex edge cases (B2B, enterprise custom pricing)
12  - Strict vendor lock-in kaygısı
13  - Full data ownership regulatorik gerekli
14  - Core business = IAP (app = subscription)
15  - DevOps team yeterli kapasitede