abdullah4ai/revenuecat
swiftship/internal/skills/data/features/revenuecat/SKILL.md
RevenueCat SDK patterns for in-app purchases, subscriptions, and entitlements. Use when implementing monetization features with RevenueCat.
$ install --global
skillsauthnpx skillsauth add abdullah4ai/apple-dev-docs revenuecatInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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Last scanned: Mar 30, 2026, 4:56 AM36.7s4 files scanned
SKILL.md
- name:
- revenuecat
- description:
- RevenueCat SDK patterns for in-app purchases, subscriptions, and entitlements. Use when implementing monetization features with RevenueCat.
RevenueCat Integration
SDK Initialization
Configure RevenueCat in your App's init() with StoreKit 2:
import RevenueCat
@main
struct MyApp: App {
init() {
#if DEBUG
Purchases.logLevel = .debug
#endif
Purchases.configure(
with: Configuration.Builder(withAPIKey: AppConfig.revenueCatAPIKey)
.with(storeKitVersion: .storeKit2)
.build()
)
}
}
The API key comes from AppConfig.revenueCatAPIKey — NEVER hardcode it inline.
Fetching Offerings
let offerings = try await Purchases.shared.offerings()
if let current = offerings.current {
for package in current.availablePackages {
let product = package.storeProduct
let price = product.localizedPriceString // "$9.99" — dynamic from store
let name = product.localizedTitle // "Premium Monthly"
}
}
Purchasing
let result = try await Purchases.shared.purchase(package: package)
if !result.userCancelled {
let isPremium = result.customerInfo.entitlements[AppConfig.entitlementID]?.isActive == true
}
Handle errors:
.purchaseCancelledError— user tapped Cancel, do nothing.paymentPendingError— payment pending approval (Ask to Buy).storeProblemError— App Store issue, show retry.purchaseNotAllowedError— device restrictions
Checking Entitlements
ALWAYS use AppConfig.entitlementID — never hardcode the entitlement string:
let customerInfo = try await Purchases.shared.customerInfo()
let isPremium = customerInfo.entitlements[AppConfig.entitlementID]?.isActive == true
Reactive Updates
for try await customerInfo in Purchases.shared.customerInfoStream {
let isPremium = customerInfo.entitlements[AppConfig.entitlementID]?.isActive == true
}
Restore Purchases
let customerInfo = try await Purchases.shared.restorePurchases()
User Account Linking
When using authentication (Supabase, Firebase, etc.), link the user ID:
let (customerInfo, _) = try await Purchases.shared.logIn(userId)
Call logIn after the user authenticates. Call logOut on sign-out:
let customerInfo = try await Purchases.shared.logOut()
CRITICAL: No Hardcoded Values
- API key: use
AppConfig.revenueCatAPIKey - Entitlement: use
AppConfig.entitlementID - Product IDs: use
AppConfig.ProductIDconstants - Prices: use
package.storeProduct.localizedPriceString— NEVER hardcode dollar amounts
See SDK Setup, Purchase Flow, and Entitlements for detailed patterns.
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