Amazon AppSync was introduced in 2018. It is a fully managed service for building scalable GraphQL APIs that integrate seamlessly with cloud data sources. AppSync simplifies application development by automating real-time data synchronization across devices and users.
The service integrates with AWS Lambda, Amazon DynamoDB, and Amazon Elasticsearch Service for end-to-end application workflows. Amazon AppSync is widely used for mobile applications, real-time dashboards, and collaborative tools.