
Description: Signal is a free, open source, encrypted messaging and voice calling app. It offers end-to-end encryption for secure communication. With Signal, users can send encrypted messages, make voice and video calls, and share media with individuals or groups.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Ekiga is an open source VoIP and video conferencing application for Linux, allowing users to make audio and video calls over the internet. It supports common standards and protocols like SIP, H.323, RTP, STUN, TURN and ICE.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API