
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: Easy Chi-Square Calculator is a free online tool for quickly calculating chi-square statistics and p-values. It allows entry of observed and expected frequency data in a contingency table and computes chi-square test results.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API