Amazon Athena vs Azure Data Factory: What are the differences?
Amazon Athena: Query S3 Using SQL. Amazon Athena is an interactive query service that makes it easy to analyze data in Amazon S3 using standard SQL. Athena is serverless, so there is no infrastructure to manage, and you pay only for the queries that you run; Azure Data Factory: Create, Schedule, & Manage Data Pipelines. It is a service designed to allow developers to integrate disparate data sources. It is a platform somewhat like SSIS in the cloud to manage the data you have both on-prem and in the cloud.
Amazon Athena and Azure Data Factory can be primarily classified as "Big Data" tools.
Azure Data Factory is an open source tool with 150 GitHub stars and 255 GitHub forks. Here's a link to Azure Data Factory's open source repository on GitHub.