
Description: CircleCI is a continuous integration and delivery platform that helps developers automate building, testing, and deploying applications. It offers cloud-based infrastructure for running jobs in Linux containers along with insights through analytics and monitoring.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: JetBrains TeamCity is a continuous integration and delivery server that helps developers automate building, testing, and deploying applications. It provides customizable build configurations, integrations with various tools, parallel testing, and deployment automation.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API