
Description: Yap Chat is a free, ad-free group chat app that allows you to create chat rooms to communicate with friends, family, teammates, and more. It has features like emojis, @ mentions, pinned messages, file sharing, search, and customizable chat rooms.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: ZeeroChat is an open-source, self-hosted chat and messaging application similar to Slack. It provides team messaging, private groups, file sharing, search, and integrations with third-party services.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API