
Description: Siphon SIP is a voice over IP (VoIP) software for making internet calls. It allows you to make free SIP calls to other Siphon users as well as cheap calls to phones globally.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: FluffyChat is an open-source, privacy-focused desktop chat app for Matrix. It allows encrypted chat, audio calls, video calls, and file sharing on the Matrix decentralised network. It's designed to be user-friendly while still protecting user privacy.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API