
Description: Zrok is an open-source, self-hosted alternative to Zoom and other video conferencing software. It allows for encrypted video calls, screen sharing, and messaging between users.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: ZeroTier is an open-source program that creates a virtual encrypted network between devices and across the internet. It allows devices to communicate over a private network as if they are locally connected, bypassing firewalls and NAT.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API