
Description: Linphone is an open source voice over IP (VoIP) phone and instant messaging client for Linux, Windows, macOS, iOS and Android. It supports standard voice and video calls as well as instant messaging between Linphone clients.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: shMessenger is an open-source, privacy-focused messenger app for Android. It features encrypted messaging, voice and video calls, group chats, media sharing, and more. shMessenger emphasizes security and does not collect user data.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API