
Description: Apple Calendar is a free calendar app developed by Apple Inc. and included on iOS and macOS devices. It allows users to view, edit, and manage events and reminders on their iPhone, iPad, Mac, and other Apple devices. Key features include creating/editing/deleting events, inviting attendees, setting alerts, viewing multiple calendars, and syncing across devices.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

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: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API