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Version: 3.1

Core Methods

This section covers the core methods available in expo-iap for managing in-app purchases.

Note: expo-iap aligns with the OpenIAP API surface. For canonical cross-SDK API docs, see:

API Categories​

Unified APIs​

Cross‑platform methods that work on both iOS and Android:

  • initConnection() — Initialize the store connection
  • endConnection() — End the store connection and cleanup
  • fetchProducts() — Fetch product and subscription metadata
  • requestPurchase() — Start a purchase for products or subscriptions
  • finishTransaction() — Complete a transaction after validation
  • getAvailablePurchases() — Restore non‑consumables and subscriptions
  • deepLinkToSubscriptions() — Open native subscription management UI
  • getStorefront() — Get current storefront country code
  • hasActiveSubscriptions() — Check if user has active subscriptions
  • verifyPurchaseWithProvider() — Verify purchase with external provider (e.g., IAPKit)

Listeners​

Event listeners for purchase updates and errors:

  • purchaseUpdatedListener — Listen for successful purchases
  • purchaseErrorListener — Listen for purchase errors
  • promotedProductListener — Listen for promoted products (iOS)

iOS Specific​

StoreKit and App Store specific capabilities:

Alternative Billing (iOS 16.0+):

  • canPresentExternalPurchaseNoticeIOS() — Check if notice sheet is available (iOS 18.2+)
  • presentExternalPurchaseNoticeSheetIOS() — Present external purchase notice (iOS 18.2+)
  • presentExternalPurchaseLinkIOS() — Open external purchase link (iOS 16.0+)

Transaction Management:

  • clearTransactionIOS() — Clear pending transactions
  • getPromotedProductIOS() — Get promoted product
  • getPendingTransactionsIOS() — Get pending transactions
  • subscriptionStatusIOS() — Get subscription status
  • currentEntitlementIOS() — Get current entitlement
  • showManageSubscriptionsIOS() — Show subscription management
  • beginRefundRequestIOS() — Request refund
  • And more...

Android Specific​

Google Play Billing specific capabilities:

Alternative Billing:

  • checkAlternativeBillingAvailabilityAndroid() — Check if alternative billing is available
  • showAlternativeBillingDialogAndroid() — Show required information dialog
  • createAlternativeBillingTokenAndroid() — Generate reporting token

Purchase Management:

  • acknowledgePurchaseAndroid() — Acknowledge non-consumable purchases
  • consumePurchaseAndroid() — Consume consumable purchases

Removed APIs​

  • requestProducts() — Removed in v3.0.0. Use fetchProducts({ skus, type }) instead.