The Breeze Swift SDK allows you to migrate from StoreKit with minimal changes. You don't need to change the logic for fetching products and making purchases. You can wrap StoreKit Product to BreezeProduct and replace StoreKit purchase calls with Breeze purchase calls easily.

Example: Original StoreKit Purchase

func purchase(_ product: Product, onSuccess: (() -> Void)? = nil) async throws {
    let result = try await product.purchase()

    switch result {
        case .success(let verification):
            let transaction = try checkVerified(verification)

            // YOUR logic to handle successful transaction	
            onSuccess?.()

            await transaction.finish()
            return transaction
        case .userCancelled, .pending:
            return nil
        default:
            return nil
    }
}

Breeze Purchase:

func purchaseBreeze(_ product: Product, onSuccess: (() -> Void)? = nil) async throws {
	// wrap Storekit Product to Breeze Product
  let breezeProduct = try await Breeze.shared.fromSkProduct(product: product)

  try await breezeProduct.purchase(using: Breeze.shared, onSuccess: { verifiedTransaction in
    // YOUR logic to handle successful verified transaction
    onSuccess?()
    await Breeze.shared.finish(verifiedTransaction)
  })
}

StoreKit Mapping

Every StoreKit configuration element has a direct counterpart in our SDK:

Product Identifiers: Preserved exactly as configured in App Store Connect
Product Types: Consumable, non-consumable, and subscription types supported
Pricing Tiers: All App Store pricing structures maintained
Localization: Multi-language support using existing App Store localizations

Sample App

A fully‑worked example is available in the our github