@RISK (created by Palisade, now owned by Lumivero) and ModelRisk from Vose Software are the two main Monte Carlo simulation add-ins for Excel. @RISK came to market over twenty years ago and was for a long time the dominant tool in the field. With the passing of its inventor, the departure of its leadership team, and the sale of the business to sequential private equity firms, the philosophy and culture have inevitably changed. Many long-time @RISK users have become dissatisfied and start to search for alternatives.
@RISK users have been increasingly switching to ModelRisk. We ran an informal survey to learn what their key reasons were for switching. We found:
The three main reasons we hear are:
The following section explains how we have addressed the first two points, minimising the time and effort required to make the transition. The last point is becoming less relevant as major government agencies and consultancy firms are making the move to ModelRisk but still remains an issue for some.
Learning about the differences is easiest when the two products look and behave the same. In most situations, they do indeed look and operate in the same way as both products are well-designed and logical.
@RISK and ModelRisk use UDFs (user-defined functions) that follow Excel’s protocol. This means that most of the functions you will be familiar with in @RISK are the same or nearly the same in ModelRisk, for example:
Where the UDFs are different, ModelRisk tends to offer a simpler alternative with the same functionality. For example:
In the standard formats, the menu ribbons for @RISK and ModelRisk look quite different:
Figure 1: Comparison of standard @RISK and ModelRisk menus
However, a user can choose to configure ModelRisk to show a menu organised similarly to @RISK – either during installation through the startup screen, or later from the Help menu. You can follow this quick video tutorial to configure ModelRisk menu ribbon:
The compatible menu matches as much as possible the location of the tools that are common to both products:
Figure 2: Comparison of standard @RISK and @RISK-organised ModelRisk menus
ModelRisk includes a tool that will convert @RISK models into the ModelRisk equivalent with just a couple of mouse clicks. Start by loading an @RISK model into Excel (with or without @RISK running):
Figure 3: Selecting the @RISK converter in the ModelRisk ribbon
Two options are available. The first option converts whatever model is currently loaded into Excel. The second, bulk, option will convert multiple models at once from a specified directory.
This short (2 minutes) video will guide you through the process of converting the single model from @RISK to ModelRisk format:
This short (1.5 minutes) video illustrates how you can convert all @RISK models from one folder and place the converted ModelRisk models into another folder:
Two @RISK-ecosystem tools deserve a straight answer before you switch. For stochastic optimisation (RISKOptimizer), the gap is closing: ModelRisk Optimizer is built and will be released in the near future — contact us about timing and early access. For decision trees (PrecisionTree), Vose Software’s ModelChoice add-in draws and manages trees directly on the worksheet, adds sensitivity, robustness, EVPI and multi-criteria analysis — and imports PrecisionTree models with one click.
Everything else in professional @RISK use — simulation, distribution fitting, correlation, time series, aggregate modelling, reporting — is covered directly in ModelRisk, in most areas with a broader method set. See the full comparison in The Top 5 Risk Analysis Add-Ins for Excel.
Most analysts are productive within days. ModelRisk functions mirror @RISK’s (RiskNormal becomes VoseNormal), the ribbon can be configured to an @RISK-style layout, and the built-in converter translates existing models automatically — individually or a whole folder at once.
Yes. ModelRisk includes a free converter that rewrites @RISK functions as ModelRisk equivalents in a couple of clicks — a single-model option and a bulk option for whole folders (both demonstrated in the videos above). Converted models remain ordinary, readable Excel workbooks.
Yes. ModelRisk costs at most €1,550 per user per year, published openly, against the €2,900–€3,500 per year listed in Lumivero’s web shop (retrieved August 2026) — roughly half the cost, before volume and multi-year discounts. Details: @RISK pricing and alternatives.
Since @RISK is sold as an annual subscription, the months before renewal are the natural moment: run the free 15-day ModelRisk trial against your own models, convert your key workbooks, and compare results side by side before the renewal decision is due. Our pre-renewal audit checklist walks through that evaluation step by step.
Yes — during installation, or any time from the Help menu, you can switch ModelRisk’s ribbon to the @RISK-compatible layout shown above, which places the common tools where @RISK users expect them.
@RISK, RISKOptimizer and PrecisionTree are trademarks of Lumivero, LLC. Vose Software is not affiliated with Lumivero. @RISK prices are from Lumivero’s public web shop (shop.lumivero.com), retrieved August 2026, shown in euros as listed to EU visitors, and may change.