
Description: Simple Calendar is a free and open source calendar app for Android. It has a clean interface for viewing and managing events, supports calendar sync, custom reminders, and an optional weather widget. Simple Calendar is lightweight, customizable, and respects user privacy.
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