
Description: FreeBusy is a free, open-source calendar tool that allows you to share availability information and coordinate schedules with others. It integrates with common calendar platforms to show when you are busy or free.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Doodle is a free online scheduling and meeting tool. It allows users to quickly set up a poll with date/time options and send it to a group to coordinate schedules and find common available times.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API