
Description: link4.chat is a free, open-source group chat and video conferencing platform. It allows users to set up chat rooms and make video calls seamlessly, with features like screen sharing, file sharing, and end-to-end encryption.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Skype Lite is a free video calling and chat app optimized for low-speed networks. It provides high-quality video and voice calls along with instant messaging on 2G and 3G networks. Key features include easy contact syncing, notifications, SMS integration, and data usage control.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API