
Description: eCalc Scientific Calculator is a free scientific calculator app for Windows. It provides advanced math and graphing functions including trigonometry, statistics, matrices, calculus, chemistry, and more. The intuitive interface allows easy access to all features.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Free42 is an open-source programmable calculator app designed to emulate the HP-42S calculator. It provides RPN mode, programming capability, expandability via packages, and accurate emulation of the original HP-42S.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API