Switching from @RISK to ModelRisk: Guide | Vose Software

Switching from @RISK to ModelRisk

Last updated August 2026

@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.

Why people switch from @RISK to ModelRisk

@RISK users have been increasingly switching to ModelRisk. We ran an informal survey to learn what their key reasons were for switching. We found:

  1. Price: All those surveyed stated that price was a major motivation for finding an alternative to @RISK. ModelRisk costs at most €1,550 per user per year, against the €2,900 (Professional) and €3,500 (Industrial) per year listed in Lumivero’s web shop (retrieved August 2026) — 47–56% less at list price, and volume discounts widen the gap further. Full breakdown: how much does @RISK cost?
  2. Service and support: Most of those surveyed stated that dissatisfaction with @RISK technical support and customer service was a contributing factor. VOSE puts a great deal of emphasis on customer support which you should experience during the sales process.
  3. License flexibility: Almost all high-volume users greatly valued the flexibility in ModelRisk licensing options. VOSE advises clients on the least-cost option for their particular needs.
  4. Performance: In testing, users found ModelRisk to be easier to use, faster and more stable than @RISK
  5. Reporting: All users preferred the graphing and reporting capabilities of ModelRisk
  6. Capabilities: Advanced users appreciated ModelRisk’s far broader range of tools

Why people put off switching to ModelRisk

The three main reasons we hear are:

  1. They think it will take a lot of time to learn a new tool
  2. They worry about the time needed to convert their models from @RISK to ModelRisk
  3. They are forced to use @RISK because of interactions with other users

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.

Minimising the time needed to learn the difference between ModelRisk and @RISK

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.

Functions

@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:

@RISK ModelRisk
=RiskNormal(2,4) =VoseNormal(2,4)
=RiskOutput() =VoseOutput()
=RiskTriang(1,3,9) =VoseTriangle (1,3,9)
=RiskLognorm(4,1) =VoseLognormal(4,1)

Where the UDFs are different, ModelRisk tends to offer a simpler alternative with the same functionality. For example:

@RISK ModelRisk
=RiskNormal(2.1785, 3.052, RiskFit("Dataset2", "AIC"), RiskName("Dataset2")) =VoseNormalFit(C1:C100)
=RiskMakeInput(A5, RiskName(“Sales”), RiskUnits(“USD”), RiskCollect()) =VoseInput(“Sales”, “USD”)+ A5

Menu system

In the standard formats, the menu ribbons for @RISK and ModelRisk look quite different:

@RISK menu ModelRisk complete menu

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:

@RISK menu @RISK compatible menu

Figure 2: Comparison of standard @RISK and @RISK-organised ModelRisk menus

ModelRisk FREE 15-day trial

Converting models written with @RISK for use with ModelRisk

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):

AtRisk converter

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.

Converting a single model

This short (2 minutes) video will guide you through the process of converting the single model from @RISK to ModelRisk format:

Converting a folder of @RISK models

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:

What about RISKOptimizer and PrecisionTree?

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.

Frequently asked questions

How long does switching from @RISK to ModelRisk take?

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.

Can I convert my existing @RISK models?

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.

Is ModelRisk cheaper than @RISK?

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.

When is the best time to switch?

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.

Can ModelRisk look and feel like @RISK?

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.