Stata is described as 'Data Analysis and Statistical Software for Professionals'. There are more than 25 alternatives to Stata for a variety of platforms, including Windows, Linux, Mac, Microsoft Office Excel and Online / Web-based. The best alternative is R (programming language), which is both free and Open Source. Other great apps like Stata are RStudio (Free, Open Source), PSPP (Free, Open Source), JASP (Free, Open Source) and jamovi (Free, Open Source).
PSPP is a free software application for analysis of sampled data. It has a graphical user interface and conventional command line interface. It is written in C, uses GNU Scientific Library for its mathematical routines, and plotutils for generating graphs.
JASP is a free and open-source graphical program for statistical analysis supported by the University of Amsterdam. It is designed to be easy to use, and familiar to users of SPSS. It offers standard analysis procedures in both their classical and Bayesian form.
jamovi is a new free and open "3rd generation" statistical spreadsheet. Designed from the ground up to be easy to use, jamovi is a compelling alternative to costly statistical products such as SPSS and SAS.
The IBM SPSS software platform offers advanced statistical analysis, a vast library of machine-learning algorithms, text analysis, open-source extensibility, integration with big data and seamless deployment into applications.
Number Analytics is a web-based statistical software designed for those who are not good at numbers. No coding needed. It automatically applies suitable statistical models and interprets results in plain English with graphs and color-coded tables.
Deducer 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.