
Description: Grayjay is an open-source alternative to Microsoft Outlook for email, contacts, and calendar management. It has a clean, customizable interface and supports IMAP/SMTP and Google, Exchange, and other popular email providers out of the box.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: LibreTube is an open-source, decentralized video platform alternative to YouTube. It allows users to watch, upload, and share videos in a censorship-resistant way by distributing content peer-to-peer using WebTorrent instead of centralized servers.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API