
Description: PSPP is a free, open source alternative to IBM SPSS Statistics. It is designed to provide statistical analysis capabilities similar to SPSS with an intuitive graphical user interface. PSPP supports common statistical procedures like descriptive statistics, hypothesis testing, regression, and more.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: gretl is an open-source statistical package mainly for econometrics. It has an easy-to-use graphical user interface and offers a wide range of statistical techniques including regression analysis, time series, and nonparametric tests.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API