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TreePlan Software Helps You Decide
Decision Tree, Sensitivity, and Simulation Add-Ins
For Microsoft Excel 2010&2013 (Windows) and Excel 2011 (Mac)
TreePlan for Decision Trees     SensIt for Sensitivity Analysis     SimVoi for Monte Carlo Simulation

Buy TreePlan, SensIt, SimVoi, or ToolKits

Buy TreePlan ToolKit SensIt for sensitivity analysis,
SimVoi for Monte Carlo simulation, and
TreePlan for decision trees.
Single license
Buy Probability ToolKit SimVoi for Monte Carlo simulation
and TreePlan for decision trees.
Single license
Buy Classic ToolKit SensIt for sensitivity analysis
and TreePlan for decision trees.
Single license
Buy WhatIf ToolKit
SensIt for sensitivity analysis and
SimVoi for Monte Carlo simulation.
Single license
Buy TreePlan
TreePlan for decision trees.
Single license
Buy SensIt
SensIt for sensitivity analysis.
Single license
Buy SimVoi
SimVoi for Monte Carlo simulation.
Single license



Click the appropriate product button to go to SWREG (Digital River), our secure order-processing service.



At the top of the secure SWREG page, specify currency and quantity.  If you change the quantity, click the Update Cart button. Volume pricing is shown in a table on each product purchase page of this web site, and the same prices appear on the secure SWREG web page.


Your Address

On the secure SWREG page, you specify your name, billing and shipping addresses, and email address. Be sure to specify an email address that can receive the confirmation email message and software link from SWREG.


Secure Payment

For a secure online credit card payment, specify your VISA, MasterCard, American Express, or other credit card information. Or, select one of the six other methods of payment.


Immediate Download

After you purchase, SWREG will send a confirmation email message to the email address you specified. If you do not see the email message, check your spam and junk folders. The  email message contains the URL where you can immediately download the software (as a compressed ZIP file). The download link will expire after 7 days from the time of purchase, so be sure to download the software immediately.


Extract from ZIP

After you download the compressed ZIP file from the SWREG web site, right-click (Windows) or double-click (Macintosh) the ZIP file to extract the XLAM add-in(s) and other files.


Install XLA add-in

Delete old versions or any Trial version of the XLA or XLAM files from your computer. Installation is simple but is not automated. Refer to the extracted How-To-Install-Add-In PDF file for detailed installation instructions.


User Guide

For software details and tutorial, refer to the User Guide PDF file(s) extracted from the ZIP file.



Current versions of the TreePlan, SensIt, and SimVoi add-ins are appropriate for all language versions of Excel that we and our customers have tested. If you want to verify compatibility before you purchase, please download the Trial version and test the Trial add-in on your computer. If the Trial version works, the purchased version will also work.


Volume Purchase

For a volume purchase, after you purchase and download the file, you may duplicate and distribute the downloaded file to other licensed users. As the primary purchaser, you receive online support and possible discounts on future products or upgrades.



If you have any questions about the status of your purchase, the download process, the extraction process, refunds, or other problems, please check the appropriate Q&A page in the support section of this web site or send e-mail to

      Price for each Pro license  
number of
or SensIt
  SimVoi   Classic
and SensIt)
  Probability ToolKit
(TreePlan and SimVoi)
or WhatIf ToolKit
(SensIt and SimVoi)
  TreePlan ToolKit
and SensIt
and SimVoi)
  Single   $59   $79   $109   $129   $179  
  2 to 9     50     67       93     110     153  
  10 to 19     38     51       71      84     117  
  20 to 49     30     40       55      66       91  
  50 to 99     24     32       44      52       73  
  100 or more     21      28        38      46       64  

   Microsoft, Windows, Excel, and the Office logo are trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries.
   Apple, Macintosh, and Mac are trademarks or registered trademarks of Apple Inc. in the United States and/or other countries.
   TreePlan, SensIt, and SimVoi are registered trademarks of Michael R Middleton dba TreePlan Software.

   Copyright © 2015 TreePlan Software. All Rights Reserved.