As a statistical tool, it is quite limited and does not have the breadth of statistical features as other, expensive software packages. PSPP does not, nor will it ever, have the same complete functionality as SPSS or PASW. Thankfully, PSPP has filled a very important gap that is perfect as a substitute for SPSS or PASW. In these times when colleges and universities are drastically slashing budgets for software and other technical equipment, relying on open source alternatives is very important. While you can burn copies of the software and have them available for purchase in your college/university bookstore ( see GNU policy on 'free'), you can also make it freely available from your own website (like we've done here) or direct students to download the software for free from the PSPP website. As an open source alterative, the program is free available for everyone under a GNU license through the Free Software Foundation. PSPP is an open source statistical package alternative built on the same basic principles and functionality as SPSS or PASW.

How to download pspp