
Description: fruux is an open-source contacts, calendars, and tasks manager. It syncs data across devices and allows users to store contacts, events, and to-do lists privately without relying on third-party services.
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