
Description: PopMan is a free and open-source email client for Linux designed to be fast, lightweight, and easy to use. It supports standard email features like IMAP/SMTP, PGP encryption, filters, and more with a simple, intuitive interface.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: nPOPuk is an open-source desktop email client for Windows. It supports POP3 and IMAP accounts, has basic email features like contacts, calendar, and tasks, and emphasizes privacy and security.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API