[Home](./index.md) > [@snowplow/react-native-tracker](./react-native-tracker.md) > [AppLifecycleConfiguration](./react-native-tracker.applifecycleconfiguration.md) > [appBuild](./react-native-tracker.applifecycleconfiguration.appbuild.md) ## AppLifecycleConfiguration.appBuild property Build name of the application e.g s9f2k2d or 1.1.0 beta Entity schema: `iglu:com.snowplowanalytics.mobile/application/jsonschema/1-0-0` Signature: ```typescript appBuild?: string; ```