
Description: Mercury Messenger is a messaging app for mobile devices that allows users to send private, encrypted messages and make voice and video calls. It has a minimalist interface focused on privacy.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Emesene is an open source instant messaging client for Windows, Linux, and macOS that allows users to connect to multiple chat networks including MSN, Facebook, Jabber/XMPP, and more. It provides a simple, easy to use interface for messaging, group chats, and file transfers.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API