Prism Updates

The latest Prism version is 9.4.1 (Windows and Mac).

How to Update to Prism 9


Update for free by downloading the Prism 9 installer for your system (instructions):


Perpetual Customers

Contact us at  to learn about upgrade options.

Latest Prism Releases

July 27, 2022

This release fixes multiple issues in Prism 9.4.0.

June 08, 2022

Introducing major improvements to Pairwise Comparisons (Stars on Graph): the pairwise comparisons (automatic stars on graph) feature now supports the Multiple t tests (and nonparametric tests) analysis. Additionally, numerous options for customizing the appearance of the pairwise comparisons on the graph have been introduced, including:

  • P value prefixes. Choose from the default "P = " or "p = " prefixes or add your own
  • Improved bracket style options. Choosing between the three different visual styles is now much clearer
  • Separate controls for text and asterisk size. Make your text bigger, make your asterisks smaller, customize as much as you like
  • Controls for specifying the distance between the text/asterisk and the line/bracket.

And many more improvements from earlier versions of Prism!

December 15, 2021

This release fixes multiple issues in Prism 9.3.0.

November 15, 2021

Introducing Cox Proportional Hazards Regression: perform survival analysis while including any number of continuous or categorical predictor variables. Other new features include:

  • New Welcome Dialog pages to help you get started. Watch videos in Prism Academy or read through selections from the Prism guides
  • New and updated keyboard shortcuts to improve your workflow efficiency
  • Support for Windows 11 and macOS 12 Monterey
  • And many more enhancements

July 19, 2021

This release introduces a variety of improvements:

  • Searchable analyses in the Analyze Data dialog for faster access
  • Graphs with improved snapping behavior of axis titles
  • Graph Portfolio with new color schemes and other improvements
  • And many more enhancements

June 01, 2021

This release fixes multiple issues in Prism 9.1.1.

May 10, 2021

This release fixes multiple issues in Prism 9.1.0.

March 16, 2021

Introducing exclusive learning resources for subscribers, and many analysis improvements:

  • Prism Academy & Intuitive Biostatistics: Access over 125 video lessons taught by highly-technical experts, and the popular Intuitive Biostatistics e-book — free with your Prism subscription, and accessible from the Welcome dialog and Help menu
  • New Analyze menu that makes it easier to find the analyses you need (searchable on macOS)
  • Principal Component Analysis graphs with a single selected principal component (same component on both axes)
  • And many more enhancements

February 16, 2021

This release fixes multiple issues in Prism 9.0.1.

January 25, 2021

This release introduces support for the Apple M1 (ARM) chipset, and fixes multiple issues in Prism 9.0.0.

October 27, 2020

This major release brings highly requested new features and capabilities, including:

  • Automatic Stars on Graphs: add multiple comparison results to graphs instantly
  • Principal Component Analysis (PCA)
  • Bubble Plots from multiple variables data
  • Estimation Plots from t-tests
  • Text in Multiple Variables tables and automatic identification of variable types (continuous, categorical, labels)
  • Multiple t-test options: paired, nonparametric and more
  • Interpolation from Multiple Linear and Multiple Logistic Regression
  • Increased data limits
  • And many more improved analyses

June 16, 2020

This release fixes multiple issues in Prism 8.4.2, and improves the support experience.

April 12, 2020

This release fixes multiple bugs in Prism 8.4.1.

March 22, 2020

This release fixes multiple graphing issues in Prism 8.4.0.

March 03, 2020

Introducing a new look for violin plots, confidence bands for logistic regression, brand new color schemes (including heat map colormaps), and more:

  • The option to display full - or truncated - violin plots
  • Confidence intervals reported for X at Y=50 for Simple Logistic Regression
  • The ability to plot confidence bands for the logistic curve from Simple and Multiple Logistic Regression
  • Colormaps "Viridis", "Magma", "Inferno", and "Plasma" added for heat maps (Viridis now the default)
  • Color schemes inspired by "Viridis", "Magma", "Inferno", and "Plasma" added for other types of graphs
  • Added analytical representation of the "Two-phase decay" exponential built-in equation
  • The ability to generate a graph after performing the Normalize analysis on any type of data table
  • And many additional performance improvements and bug fixes

January 19, 2020

This release fixes multiple issues in Prism 8.3.0, and improves stability.

October 28, 2019

Introducing Logistic Regression: model binary probability (e.g. yes/no, pass/fail) with a single or multiple explanatory variables. Included in this release:

  • New simple logistic regression analysis in XY data tables
  • New multiple logistic regression analysis in Multiple Variables data tables
  • Improved support for macOS Catalina
  • Added analytical representations of polynomial functions (5th, 6th, and 10th order)
  • Improved auto-recovery of Prism files under specific situations
  • And many additional performance improvements and bug fixes

August 27, 2019

This release fixes multiple issues in Prism 8.2.0, and improves stability.

July 21, 2019

Introducing new features, performance improvements and bug fixes for Prism 8, including:

  • New options for visualizing scatter plots. Choose from three different styles and set your preferred style as a default
  • New equations in the nonlinear regression equation library: Absolute IC50 and all dose-response equations with X as concentration OR log(concentration)
  • The option to set a graph's axis scale to a Natural Log (Ln) scale
  • The ability to add multiple annotations for a single bar (above, within at top, AND within at bottom)
  • The option to toggle between a "Data with Results" view in the Navigator (data tables and linked results sheets grouped), or separate "Data" and "Results" sections
  • Improved Results Tabs appearance, increasing visibility and usability
  • Expanded results from ordinary Two-way ANOVA, now including a "Data summary" section displaying a number of columns, rows, and values
  • Corrected results for repeated measures Two-way ANOVA when no variation between subjects exists
  • The ability to export semi-transparent objects on a graph to PDF

Also, introducing Prism Labs with the first release from our experimental workshop: explore how Prism can now identify "unstable" parameters in nonlinear regression instead of classifying entire model fits as "ambiguous". Learn more

May 27, 2019

This release fixes multiple issues in Prism 8.1.1, including fixing 'multiple comparisons' results in Two-way ANOVA when entering data as SD/SEM/CV and N.