GNU PSPP vs GraphPad Prism

GNU PSPP is free desktop software for statistical analysis of sampled data and a free replacement for SPSS. It provides graphical and command-line interfaces, scripting support, statistical tests, and regression models. Analyses include descriptive statistics, t-tests, ANOVA, linear and logistic regression, cluster analysis, reliability and factor analysis, and non-parametric tests. Data can come from PSPP system or portable files, Gnumeric, ODS, PostgreSQL, and TXT or other delimited text. Results can be written as text, PostScript, PDF, OpenDocument, or HTML. PSPP syntax and data files are compatible with SPSS, with a stated aim of producing similar results. The project lists interoperability with Gnumeric, LibreOffice, OpenOffice.org, and other free software. It supports Linux, macOS, and Windows as desktop platforms. The GNU GPL version 3 or later governs the software. Its listed plan is free, with no license fees or artificial limits on cases or variables.

GraphPad Prism is statistical analysis and graphing software for Windows and macOS. Its analyses include t-tests, ANOVA, regression, survival analysis and principal component analysis, among others; nonlinear regression includes 105 built-in equations. Users can import Excel XLS, CSV, TXT, DAT and PRN text files, and the software supports scripting. Data tables can hold up to 2,048 columns and 512 subcolumns in each. Projects can use CSV, PNG and JSON formats, while graph exports can be configured by file type, resolution, transparency, dimensions and RGB or CMYK color space. Prism Cloud workspaces support sharing, viewing and collaboration, with roles from viewer to content manager. Individual plans include annual student pricing at $142 a year, annual academic pricing at $260 a year, annual corporate pricing at $520 a year and a monthly subscription at $50 a month. Group subscriptions and an enterprise option are also listed. A perpetual corporate license costs $3,200 per licence and includes no upgrades or future support.