
Description: Orbiter is a free, open source space flight simulator. It allows users to operate or ride on spacecraft and experience space flight similar to real-life space programs. Orbiter provides realistic physics and graphics to simulate various spacecraft, planets, moons, and more.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Systems Tool Kit (STK) is satellite mission analysis software used for designing, planning, analyzing, and visualizing complex systems including spacecraft, aircraft, radars, and more. It allows modeling of various scenarios to optimize performance.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API