I-GNU PSPP yinkqubo yohlahlelo lwamanani edatha eyisampuli. Isimahla njengakwindawo yenkululeko yenkqubo yobunikazi yeSPSS, kwaye ibonakala ifana kakhulu nayo ngaphandle kokukhetha okumbalwa. Eyona nto ibalulekileyo kwezi ngaphandle, ukuba akukho "ibhombu ixesha"; ikopi yakho ye-PSPP ayiyi "kuphelelwa yisikhathi" okanye iyeke ngabom ukusebenza kwixesha elizayo. Kananjalo akukho mida eyenziweyo kwinani leemeko okanye izinto ezahlukeneyo onokuzisebenzisa. Akukho ziphakheji ezongezelelweyo zokuthenga ukuze ufumane imisebenzi "ephezulu"; yonke imisebenzi exhaswa yiPSPP ngoku ikwiphakheji engundoqo.

I-PSPP iyisicelo esizinzile nesithembekileyo. Iyakwazi ukwenza izibalo ezichazayo, iimvavanyo ze-T, i-nova, i-linear kunye ne-logistic regression, imilinganiselo yokudibanisa, uhlalutyo lweqela, ukuthembeka kunye nohlalutyo lwezinto, iimvavanyo ezingenayo i-parametric kunye nokunye. I-backend yayo yenzelwe ukwenza uhlalutyo lwayo ngokukhawuleza, kungakhathaliseki ukuba ubungakanani bedatha yegalelo. Ungasebenzisa i-PSPP ngojongano lwayo lomzobo okanye imiyalelo yesivakalisi yesivakalisi.

• Inkxaso yamatyala angaphezu kwebhiliyoni e-1.
• Inkxaso phezu 1 billion variables.
• Isintaksi kunye neefayile zedatha ezihambelana nezo zeSPSS.
• Ukhetho lweterminal okanye ujongano lomsebenzisi womzobo.
• Ukhetho lwesicatshulwa, umbhalo weposi, i-pdf, uxwebhu oluvulekileyo okanye iifomati zemveliso yehtml.
• Ukusebenzisana kunye Gnumeric, LibreOffice, OpenOffice.Org kunye nenye isoftware yasimahla.
• Ukungeniswa kwedatha ngokulula ukusuka kwispredishithi, iifayile ezibhaliweyo kunye nemithombo yedatha.
• Ukukwazi ukuvula, ukuhlalutya kunye nokuhlela iiseti zedatha ezimbini nangaphezulu ngaxeshanye. Zisenokudityaniswa, zidityaniswe okanye zidityaniswe.
• Ujongano lomsebenzisi oluxhasa zonke iiseti zabalinganiswa abaqhelekileyo kwaye eziguqulelwe kuyo iilwimi ezininzi.
• Iinkqubo zamanani ezikhawulezayo, nakwiiseti zedatha ezinkulu kakhulu.
• Akukho ntlawulo yelayisensi.
• Akukho xesha lokuphelelwa.
• Akukho ukunganyaniseki "izivumelwano zelayisensi yomsebenzisi wokugqibela".
• A isalathisi ngokupheleleyo incwadi yokusebenzisa.
• Inkululeko iqinisekisiwe; Inikwe ilayisenisi phantsi kwe GPLv3 okanye kamva.
• Ukuphatheka; Isebenza kwiikhompyuter ezininzi ezahlukeneyo kunye neenkqubo ezininzi ezahlukeneyo zokusebenza (i-GNU okanye i-GNU/Linux ngamaqonga athandwayo, kodwa sineengxelo ezininzi zokuba isebenza kakuhle nakwezinye iinkqubo).