
Description: VPNBook is a free, open-source VPN service that allows users to connect to servers in different countries to access restricted content and increase privacy. It offers PPTP and OpenVPN protocols with servers in over 80 locations.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Yggdrasil is a lightweight experimental peer-to-peer network, aiming to implement advanced routing and networking capabilities while remaining simple and easy to use. It is decentralized, self-arranging, and supported by end-users running a light-weight mobile app or desktop application.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API