
Description: Google Calendar is a free online calendar service provided by Google that allows users to create and edit events, set reminders, invite others to events, and view calendars from multiple accounts in a single interface. It integrates with other Google services like Gmail.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Coolendar is a free, open-source calendar and scheduling app designed for teams. It allows users to share calendars, schedule meetings and events, and collaborate on projects. Coolendar syncs across devices and integrates with popular productivity tools.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API