The AWS SDK for Android - Core module holds the classes that is used by the individual service clients to interact with Amazon Web Services. Users need to depend on aws-java-sdk artifact for accessing individual client classes.

The AWS Android SDK for Amazon S3 module holds the client classes that are used for communicating with Amazon Simple Storage Service

The AWS Android SDK for Mobile Client holds the client classes that are used for initializing the SDK and instantiating the SDK clients.

AWS SDK for Android - AppSync GraphQL client library

The AWS Android SDK for Amazon Cognito Sync module holds the client classes that are used for communicating with Amazon Cognito Sync Service

The AWS Android SDK for Amazon Cognito Identity Provider module holds the client classes that are used for communicating with Amazon Cognito Identity Provider Service

The AWS Android SDK for Amazon API Gateway Runtime module holds the runtime library needed by the generated client for APIs defined in Amazon API Gateway.

The AWS Android SDK for AWS IoT module holds the client classes that are used for communicating with AWS IoT Service

The AWS Android SDK for Authentication - Cognito Userpools SignIn holds the client classes that are used for enabling communication with Cognito UserPools SignIn Provider

The AWS Android SDK with app integration for Amazon Cognito Your User Pools Service