
Description: PenPal World is a pen pal matching service that connects people from around the world to exchange letters and emails. It allows users to find pen pals based on shared interests, language learning goals, age groups, and regions of the world.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Facebook is a popular social networking platform that allows users to connect with friends, family, coworkers, and people with shared interests. Users can share photos, videos, status updates, join groups, and more.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API