KMP IAP
A Kotlin Multiplatform library for in-app purchases on iOS and Android
Easy to Use
kmp-iap was designed from the ground up to be easily installed and used to get your in-app purchases up and running quickly.
Focus on What Matters
kmp-iap lets you focus on your app logic, and we'll handle the purchase flows. Go ahead and implement your store with confidence.
Cross-Platform
Works seamlessly on both iOS and Android with unified APIs. Write once, purchase everywhere with consistent behavior.
Unified API Spec
99% API compatibility with expo-iap and other cross-platform solutions. Easy migration and familiar patterns for developers.
Modern & Reliable
Built with the latest StoreKit 2 and Google Play Billing v7 APIs. Battle-tested by thousands of apps in production.
Open Source
Completely open source with active community support. Join us in making in-app purchases better for everyone.
Simple to Use
// Initialize
KmpIAP.initConnection()
// Load products
val products = KmpIAP.requestProducts(
ProductRequest(
skus = listOf("product_id"),
type = ProductType.INAPP
)
)
// Make purchase
KmpIAP.requestPurchase(
UnifiedPurchaseRequest(
sku = "product_id",
quantity = 1
)
)
// Listen to updates
KmpIAP.purchaseUpdatedListener.collect { purchase ->
// Handle purchase
}