
Description: Ayttm is an open source instant messaging client for Windows that allows users to connect to multiple IM networks such as AIM, MSN, Yahoo, and more. It provides tabbed chats, emoji support, group messaging, and other basic messaging features.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Tango is a free and open source, cross-platform program for video calling and instant messaging using Voice over IP. It offers encryption, group conversations, file transfers, customizable user profiles, and other features.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API