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· 3 min read
Hyo

We're excited to announce the release of kmp-iap v1.0.0-rc, which brings significant API improvements that make in-app purchases even easier to implement in your Kotlin Multiplatform projects.

🎯 Key Changes​

Simplified API Design​

We've removed unnecessary wrapper classes to make the API more intuitive and reduce boilerplate code. The core methods now accept parameters directly instead of requiring wrapper objects.

· 11 min read
KMP-IAP Team

We're thrilled to announce the most comprehensive update to KMP-IAP yet! Version 1.0.0-beta brings complete platform parity, 100% compliance with the OpenIAP specification, improved naming conventions, and extensive field additions for both Android and iOS platforms.

· 2 min read
Hyo

kmp-iap Initial Release 🎉​

We're excited to announce the first release of kmp-iap, a unified in-app purchase library for Kotlin Multiplatform!

Key Features​

🍎 iOS - Full StoreKit 2 Support​

  • Complete support for Apple's latest StoreKit 2 framework
  • Enhanced purchase verification and transaction management
  • Improved subscription status tracking
  • Leverages modern Swift async/await patterns

🤖 Android - Google Play Billing Library 7.1.1 Support​

Supporting Google Play Billing Library 7.1.1 with comprehensive features:

  • Product Details API: Modern API for querying product information
  • Subscription offers: Support for multiple subscription offers and pricing phases
  • Pending purchases: Full support for pending transactions
  • Error handling: Detailed error codes and debugging information
  • Purchase verification: Secure purchase token verification

🎯 Unified API​

  • Same API for in-app purchases on both iOS and Android
  • Reactive programming with Kotlin Coroutines and Flow
  • Type-safe Kotlin native implementation

Getting Started​

// Initialize
KmpIAP.initConnection()

// Load products
val products = KmpIAP.requestProducts(
    ProductRequest(
        skus = listOf("product_id"),
        type = ProductType.INAPP
    )
)

// Request purchase
KmpIAP.requestPurchase(
    UnifiedPurchaseRequest(
        sku = "product_id",
        quantity = 1
    )
)

// Observe purchase state
KmpIAP.purchaseUpdatedListener.collect { purchase ->
    // Handle purchase
}

Next Steps​

We'll continue to improve the library and add new features. Your feedback and contributions are welcome!

GitHub: https://github.com/hyochan/kmp-iap