
Description: Instantbird is an open-source instant messaging client that supports popular chat protocols like XMPP/Jabber, IRC, Twitter and Facebook Chat. It is based on Mozilla technology and aims to be a lightweight and customizable alternative to larger IM clients.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Facebook Messenger is a popular messaging app developed by Facebook. It allows users to send messages, photos, videos, and make voice and video calls to contacts. Key features include group chats, games, payments and using bots.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API