Android implementation of the OpenIAP specification using Google Play Billing.

Modern Android Kotlin library for in-app purchases using Google Play Billing Library v9.1.

Visit openiap.dev for complete documentation, API reference, guides, and examples.

• Google Play Billing v9.1
• Kotlin Coroutines
• Type-safe API with sealed classes
• Real-time purchase events
• Thread-safe operations
• Comprehensive error handling

• Minimum SDK: 23 (Android 6.0)
• Compile SDK: 36
• Google Play Billing: v9.1.0
• Kotlin compiler (consumer): 2.1.20+

Add to your module's build.gradle.kts:

dependencies {
    implementation("io.github.hyochan.openiap:openiap-google:<version>")
}

Use the latest version from Maven Central or the badge above.

import dev.hyo.openiap.store.OpenIapStore

class MainActivity : AppCompatActivity() {
    private lateinit var iapStore: OpenIapStore

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        iapStore = OpenIapStore(this)

        lifecycleScope.launch {
            // Initialize connection
            iapStore.initConnection()

            // Fetch products
            val products = iapStore.fetchProducts(
                ProductRequest(skus = listOf("premium_upgrade"))
            )
        }
    }
}

For detailed usage, see the documentation.

Run the included sample app:

cd packages/google
./gradlew :Example:installDebug

Thank you to Meta and Amazon Developer for supporting OpenIAP. View sponsorship options.

We also recognize sponsors and backers through OpenCollective. The original react-native-iap collective now supports the broader OpenIAP ecosystem and is managed separately from the main sponsor program.

Sponsors:

Backers:

Become a sponsor | Become a backer

Supported the project before the OpenIAP sponsor program.

MIT License - see LICENSE for details.

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