
Description: Pingnoo is a free email tracking software that allows users to see when their emails are opened. It works by embedding a tracking pixel in outgoing emails which pings back when the email is opened.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: WinMTR is a free network diagnostics tool for Windows that provides real-time information about packet loss and latency between the local computer and a destination host. It's useful for troubleshooting network issues.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API