
Description: Secure instant messaging (SIM) software provides encrypted messaging to protect user privacy. Popular open-source options include Signal and Telegram, which offer end-to-end encryption. Enterprise options like Symphony and Cisco Jabber also exist.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: IP Messenger is a free instant messaging application for Windows that allows users to chat privately or in groups using direct peer-to-peer connections without the need for a server.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API