Software Alternatives, Accelerators & Startups

SimFlow VS Calcumber

Compare SimFlow VS Calcumber and see what are their differences

Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

SimFlow logo SimFlow

SimFlow is a powerful CFD software, focused on engineering and science.

Calcumber logo Calcumber

Calculate in a notebook and share โ€” from everyday math to engineering.
Visit Website
  • SimFlow Landing page
    Landing page //
    2018-11-23

SimFlow is a desktop-based Computational Fluid Dynamics (CFD) simulation software for Windows and Linux. SimFlow is easy to learn and intuitive interface based on well known OpenFOAM libraries. You can download a free version from our website and try it right now.

  • Calcumber Usefulness of units when calculating the weight of paper
    Usefulness of units when calculating the weight of paper //
    2026-07-25
  • Calcumber Calcumber interactively embedd on a web page
    Calcumber interactively embedd on a web page //
    2026-07-25
  • Calcumber Showcase from arithmetics to thermodynamics
    Showcase from arithmetics to thermodynamics //
    2026-07-25

Use variables, functions, and units and see results immediately. Add comments, copy calculations to apps like Word or Excel, or share them through an editable link. Calculate thermodynamic fluid properties with the integrated CoolProp library.

SimFlow

$ Details
freemium $8,000 / Annually
Platforms
Windows Linux
Release Date
2012 July

Calcumber

Pricing URL
-
$ Details
free
Platforms
Web Windows Linux Mac
Release Date
2025 June
Startup details
Country
Switzerland
State
Aargau
City
Staufen
Founder(s)
Samuel Hartmann
Employees
1 - 9

SimFlow features and specs

  • User-Friendly Interface
    SimFlow offers an intuitive GUI that simplifies the process of setting up and running simulations, making it accessible for both beginners and experienced users.
  • Integration with OpenFOAM
    SimFlow is built on top of OpenFOAM, leveraging its robust computational fluid dynamics (CFD) capabilities while providing enhanced usability and visualization tools.
  • Comprehensive Post-Processing
    The software includes advanced post-processing features for detailed analysis and visualization of simulation results, supporting better decision-making.
  • Cross-Platform Support
    SimFlow is available for multiple operating systems including Windows and Linux, providing flexibility for users working in different environments.
  • Affordability
    Compared to other CFD software, SimFlow is relatively cost-effective, offering substantial features without the high price tag.

Possible disadvantages of SimFlow

  • Limited Availability of Tutorials and Documentation
    While SimFlow is user-friendly, the availability of comprehensive tutorials and detailed documentation is relatively limited compared to other CFD software, which can pose a learning curve for new users.
  • Dependence on OpenFOAM
    Although integration with OpenFOAM is a strength, it also means that any limitations or bugs in OpenFOAM could directly affect SimFlowโ€™s performance.
  • Computational Resource Intensive
    Running complex simulations on SimFlow can be resource-intensive, requiring substantial computational power and memory, which might be a constraint for users with limited hardware capabilities.
  • Less Industry Adoption
    SimFlow is not as widely adopted in industry compared to other established CFD tools, which might lead to compatibility issues or limited community support.

Calcumber features and specs

  • ๐ŸŒฟ Naturally type expressions
    get immediate results
  • ๐Ÿ”— Copy and share
    keep calculations editable with a link
  • ๐Ÿงฉ Variables and constants
    pi, e, G, mu0
  • ๐Ÿงช Scientific functions
    sin, acos, log, round, and more
  • โ™จ๏ธ Thermodynamic fluid properties
    refrigeration, heat pumps, steam and air
  • ๐Ÿ’ก Installation optional
    run directly in your browser
  • ๐Ÿ“ฑ Multi-platform
    WebApp, Windows, more to come

Analysis of SimFlow

Overall verdict

  • Overall, SimFlow is considered a good CFD tool, particularly for users who want to leverage OpenFOAM capabilities with more ease. Its combination of robust functionality and ease of use makes it a valuable tool for both beginners and experienced users in the field of computational fluid dynamics.

Why this product is good

  • SimFlow is often regarded as a good computational fluid dynamics (CFD) software due to its user-friendly interface, providing engineers and researchers with accessible tools for simulating fluid flow and heat transfer processes. It integrates the capabilities of OpenFOAM with an approachable graphical user interface, making it suitable for those who need powerful results without an extensive learning curve. Additionally, it supports a wide range of models and solvers, which can be beneficial for various applications.

Recommended for

    SimFlow is recommended for engineers, researchers, and students who need a cost-effective, yet powerful CFD tool. It is particularly useful for professionals who require detailed simulations of fluid dynamics processes and want the flexibility of OpenFOAM without the steep learning curve typically associated with command-line tools.

SimFlow videos

CFD Tutorial - von Karman Vortex Street | simFlow CFD

More videos:

  • Tutorial - CFD Simulation Tutorial - Cylinder Cooling | simFlow CFD

Calcumber videos

No Calcumber videos yet. You could help us improve this page by suggesting one.

Add video

Category Popularity

0-100% (relative to SimFlow and Calcumber)
Numerical Computation
100 100%
0% 0
Math Calculators
0 0%
100% 100
CFD
100 100%
0% 0
Math Solver
0 0%
100% 100

Questions & Answers

As answered by people managing SimFlow and Calcumber.

Why should a person choose your product over its competitors?

Calcumber's answer:

  • Sharing calculations and embedding them in documents or web pages is perfect for education.
  • Natural unit support, just include them in your expression and Calcumber handles it.
  • Free and easy access to thermodynamic fluid-properties.

What makes your product unique?

Calcumber's answer:

  • Easy to use calculator notebook
  • From simple arithmetic to advanced engineering with units
  • Installation optional
  • Send calculation link with full privacy
  • Embed calculation templates, exercices and soultions in documents or interactively in web pages

What's the story behind your product?

Calcumber's answer:

When starting for a Master of Advances Study in Energy Systems, I was looking for a suitable state-of-the-art calculator. Then I built my own Calculator Calcumber and now the Eastern Switzerland University of Applied Sciences is using Calcumber for teaching students in thermodynamics.

How would you describe the primary audience of your product?

Calcumber's answer:

  • The notebook-style calculator is great for everybody who wants more than just a single line calculator.
  • The sharing and embedding features make it Calcumber very well suited for teachers and students. The power of consistently using units is shown immediatly.
  • Engineers will like the unit support, sharing calculations with collegues and if needed the built-in fluid properties calculation.

Which are the primary technologies used for building your product?

Calcumber's answer:

HTML, CSS, TypeScript, PWA, CoolProp

Who are some of the biggest customers of your product?

User comments

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What are some alternatives?

When comparing SimFlow and Calcumber, you can also consider the following products

ANSYS Fluent - ANSYS engineering simulation and 3D design software delivers product modeling solutions with unmatched scalability and a comprehensive multiphysics foundation.

Numara Calculator - A simple but powerful notepad calculator which evaluates expressions as you type.

CFDTool - An Easy to Use MATLAB Computational Fluid Dynamics CFD Simulation GUI Toolbox

SpeedCrunch - SpeedCrunch. SpeedCrunch is a high-precision scientific calculator featuring a fast, keyboard-driven user interface. It is free and open-source software, licensed under the GPL. Download Documentation Donateย .

FEATool Multiphysics - FEATool Multiphysics is a fully integrated Finite Element FEM CAE simulation toolbox for Matlab.

Qalculate! - Qalculate! is a multiplatform multi-purpose desktop calculator.