
Description: Utterances is an open-source, self-hosted comment system that can be integrated into websites to enable user comments. It is lightweight, customizable, and focuses on privacy.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Gitalk is an open-source comment system based on GitHub Issues that can be easily integrated into websites and blogs to enable comment functionality. It's lightweight, fast, and easy to use.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API