Deducer is described as 'is designed to be a free easy to use alternative to proprietary data analysis software such as SPSS, JMP, and Minitab. It has a menu system to do common data manipulation and analysis tasks, and an excel-like spreadsheet in which to view and edit data frames'. There are more than 25 alternatives to Deducer for a variety of platforms, including Windows, Linux, Mac, Online / Web-based and Xfce. The best alternative is R (programming language), which is both free and Open Source. Other great apps like Deducer are RStudio (Free, Open Source), PSPP (Free, Open Source), JASP (Free, Open Source) and jamovi (Free, Open Source).
SOFA Statistics is an open-source statistical package, with an emphasis on ease of use, learn as you go, and beautiful output. The name stands for Statistics Open For All. It has a graphical user interface and can connect directly to MySQL, SQLite, MS Access, and MS SQL Server.
A web based statistical software is designed for market research and social science research. It automatically applies appropriate statistical models and show results with graphs and color coded tables so that it would great for beginners and novice.
ggraptR is an open source R package providing a GUI for visualization. It is based on principles of visualization analysis by Tamara Munzner, and also acts as a wrapper for functionality implemented in the grammar of graphics for R, ggplot2.
MonteCarlito is a free Excel-add-in to do Monte-Carlo-simulations. Apart from these it can also do statistical analysis like mean, median, standard error, variance, skewness, kurtosis. It can create histograms. The code is open source.
Statwing was built by and for analysts, so you can clean data, explore relationships, and create charts in minutes instead of hours. Simply upload your spreadsheet or dataset, then select the relationships you want to explore.