
Description: Claws Mail is an open-source email client and news client for Linux and other Unix-like operating systems. It supports features like SSL/TLS encryption, spam filtering, multi-account management, and custom themes.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Superhuman is an email client designed to help users get through their inbox efficiently. It uses AI and keyboard shortcuts to accelerate common email actions like replying, searching, tagging, scheduling sends, and more.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API