Using StoreKit in Unity

Overview

Apple provides a StoreKit plug-in for Unity — an open source C# wrapper that gives Unity developers direct access to StoreKit, Apple’s framework for implementing in-app purchases. If your game is built in Unity, use this plug-in to add Apple In-App Purchases without writing platform-specific Swift or Objective-C code.

The plug-in exposes the same APIs and the same full feature set available to native Apple developers, through idiomatic C# calls that fit naturally into a Unity project. It’s maintained by Apple, ships as source on GitHub, and includes a sample project demonstrating the core purchase flow.

Understand the StoreKit plugin’s capabilities

• Product fetching — retrieve product metadata (price, display name, description) for your app’s in-app purchases and subscriptions.

• Purchases — initiate a purchase and receive a verification result.

• Transaction verification — cryptographically verify transactions via VerificationResult.

• Transaction updates — listen for real-time transaction changes (renewals, refunds, revocations) via Transaction.Updates.

• Current entitlements — check what a player currently owns via GetCurrentEntitlements.

• App Transaction — access app-level purchase information via AppTransaction.

• Offer codes — present the system integrated offer-code redemption sheet.

• Subscriptions — read subscription status, renewal info, and win-back offer eligibility via SubscriptionInfo.

• Promotional offers and purchase intents — support Apple Search Ads / App Store product page purchase flows via PurchaseIntent and Product.PromotionInfo.

• Advanced Commerce — AdvancedCommerceProduct support for custom pricing and purchase options.

• Storefront and app lifecycle helpers — Storefront.GetCurrent, AppStore.Sync, AppStore.RequestReview.

Getting started

For installation, setup, and usage instructions, see the plug-in’s README in the GitHub repository — this article doesn’t duplicate that content.