
Description: One Calendar is a free calendar app that allows you to manage all of your calendars and events in one place. It pulls in your Google, Outlook, and iCloud calendars, as well as your tasks, so you can view everything together. Key features include calendar management, event creation, reminders, and access across devices.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Zoho Calendar is a free online calendar and scheduling service that allows individuals and teams to manage appointments, events, and reminders. It integrates with other Zoho apps and includes features like recurring events, calendar sharing, email reminders, and mobile apps.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API