
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: An Otter is a free, open source RSS reader and aggregator for Windows. It allows you to subscribe to RSS feeds and view new articles in a clean, ad-free interface. Key features include full-text search, customizable categories and tagging, offline reading support, and integration with services like Pocket.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API