Design Master vs SimFlow Comparison: Reviews, Features, Pricing & Alternatives in 2026

Detailed side-by-side comparison to help you choose the right solution for your team

Updated Apr 2026 8 min read

Design Master

0.0 (0 reviews)

Design Master provides specialized electrical and HVAC engineering software that automates complex calculations and drafting tasks directly within AutoCAD and Revit to streamline your entire building design process.

Starting at $90/mo
Free Trial 30 days
VS

SimFlow

0.0 (0 reviews)

SimFlow is a comprehensive computational fluid dynamics software that provides an OpenFOAM-based GUI for simulating complex fluid flows, heat transfer, and multiphase interactions across engineering disciplines.

Starting at Free
Free Trial NO FREE TRIAL

Quick Comparison

Feature Design Master SimFlow
Website designmaster.biz sim-flow.com
Pricing Model Subscription Freemium
Starting Price $90/month Free
FREE Trial ✓ 30 days free trial ✘ No free trial
Free Plan ✘ No free plan ✓ Has free plan
Product Demo ✓ Request demo here ✓ Request demo here
Deployment desktop desktop
Integrations AutoCAD Revit BricsCAD OpenFOAM ParaView SolidWorks Autodesk Inventor Rhino
Target Users small-business mid-market enterprise small-business mid-market enterprise
Target Industries construction engineering aerospace automotive energy
Customer Count 0 0
Founded Year 2001 2013
Headquarters Seattle, USA Warsaw, Poland

Overview

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Design Master

Design Master offers a suite of engineering tools specifically created for electrical and HVAC professionals who work in AutoCAD and Revit. Instead of jumping between separate spreadsheets and drafting programs, you can perform complex calculations like load analysis, short circuit studies, and duct sizing directly within your design environment. This integration ensures your schedules and drawings stay synchronized automatically as you make changes.

You can choose between specialized modules for electrical, HVAC, or plumbing needs depending on your project requirements. The software is designed for MEP engineering firms and individual consultants who need to increase accuracy while reducing the time spent on repetitive drafting tasks. By automating the technical math, you can focus more on high-level design and less on manual data entry.

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SimFlow

SimFlow is a powerful computational fluid dynamics (CFD) platform that brings the capabilities of OpenFOAM to a user-friendly graphical interface. You can handle complex engineering challenges including compressible and incompressible flows, heat transfer, and chemical reactions without writing code. It allows you to import geometry directly from CAD software, create high-quality meshes, and monitor simulations in real-time to ensure accuracy and efficiency.

Whether you are designing automotive components or optimizing HVAC systems, the platform provides the tools to visualize flow patterns and pressure distributions effectively. You can run simulations on your local machine or scale up to high-performance computing clusters for massive datasets. It is designed for engineering professionals and researchers who need the precision of open-source solvers combined with the speed of a modern, intuitive workflow.

Overview

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Design Master Features

  • Integrated Electrical Calculations Perform short circuit, voltage drop, and arc flash calculations instantly as you place components in your drawings.
  • Automated Panel Schedules Generate and update panel schedules automatically, ensuring your documentation always matches the latest version of your design.
  • One-Line Diagram Tools Create dynamic one-line diagrams that stay linked to your floor plans to eliminate coordination errors between views.
  • HVAC Load Calculations Calculate heating and cooling loads directly from your building geometry to size equipment accurately without external tools.
  • Duct and Pipe Sizing Size your ductwork and piping systems based on flow requirements and pressure drop limits with built-in automation.
  • Revit Integration Enhance your BIM workflow with specialized tools that add advanced engineering data and calculations to standard Revit elements.
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SimFlow Features

  • Mesh Generation. Create high-quality hex-dominant meshes automatically for complex geometries using the integrated snappyHexMesh and cfMesh tools.
  • Multiphase Flow. Simulate interactions between different fluids, such as water and air, to predict cavitation, splashing, or free-surface movements.
  • Heat Transfer. Analyze conduction, convection, and radiation within your designs to optimize cooling systems and thermal management strategies.
  • Real-time Monitoring. Track residuals and physical quantities during the calculation process to catch errors early and save valuable computing time.
  • Parallel Processing. Speed up your simulations by distributing the workload across multiple CPU cores with seamless MPI support.
  • Post-processing. Visualize your results with integrated ParaView support to create stunning animations and detailed vector plots of fluid behavior.

Pricing Comparison

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Design Master Pricing

Electrical for AutoCAD
$90
  • Short circuit calculations
  • Voltage drop analysis
  • Automated panel schedules
  • One-line diagram generation
  • Photometric lighting levels
  • Equipment and wire sizing
S

SimFlow Pricing

Free
$0
  • Limit of 200,000 nodes
  • All physical models included
  • Parallel processing support
  • Standard mesh tools
  • Community support access

Pros & Cons

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Design Master

Pros

  • Significant reduction in manual calculation errors
  • Excellent technical support from knowledgeable engineers
  • Seamless integration with existing AutoCAD workflows
  • Automatic updates to schedules save hours
  • Highly specialized for NEC compliance standards

Cons

  • Initial setup requires significant time investment
  • Interface feels dated compared to modern apps
  • Learning curve for customizing specific block libraries
A

SimFlow

Pros

  • Intuitive GUI makes OpenFOAM accessible to beginners
  • Excellent mesh generation capabilities for complex parts
  • Free version is highly functional for small projects
  • Supports a wide range of physical solvers
  • Regular updates keep the software stable and modern

Cons

  • Commercial licenses require a custom quote
  • Learning curve remains steep for CFD theory
  • Hardware requirements are high for large meshes
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