For this review I'm using a Dual 2.5 Ghz PPC G5 and Microsoft Excel 2004. StatPlus:mac is available for both PPC and Intel machines and works with Microsoft Excel 20. Use different methods from contingency tables analysis to rank correlations, Probit and Latin squares, Kruskal-Wallis ANOVA and Cochran Q test, without compromising ease of use. Adding the ability to perform complex calculations and analysis tasks such as normality tests, Pagurova Criterion, correlation coefficients, GLM ANOVA and non-parametric statistical analysis. This is where AnalystSoft hope to take advantage, StatPlus:mac is claimed to turn your copy of excel into a powerful statistical tool. There are a large number of data analysis tools available on the Mac platform but many are expensive and/or not particularly user friendly. Whilst these limitations may not be an issue for financial or accountancy uses they are a significant obstacle towards scientific use. Whilst Excel has been around on the Mac platform since 1985 and is probably the leading spreadsheet application, the data analysis capabilities and statistical analysis is still rather limited.