
Description: Six Sigma Calculator is a free web-based tool that allows users to perform common Six Sigma statistical calculations. It includes functions for process capability analysis, statistical power analysis, DPMO/yield rate calculations, sample size estimation, and more.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: PAST is a free, open-source software package for scientific data analysis, with specific tools for paleontologists. It includes functions for data manipulation, plotting, univariate and multivariate statistics, ecological analysis, time series analysis, trait analysis, and more.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API