
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: Kin Calendar is a free, open-source calendar and scheduling app for individuals, families, teams, and small businesses. It has a simple, intuitive interface for creating and managing events, reminders, and shared calendars.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API