
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: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Proton Calendar is a free and open source calendar app created by Proton Technologies AG, the company behind the ProtonMail encrypted email service. It allows users to manage events and tasks with customizable reminders, inviting guests, event coloring, and accessibility features. As with other Proton apps, it has a focus on privacy and security of user data.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API