Software Alternatives, Accelerators & Startups

CFDTool VS Calcumber

Compare CFDTool VS Calcumber and see what are their differences

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CFDTool logo CFDTool

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

Calcumber logo Calcumber

Calculate in a notebook and share โ€” from everyday math to engineering.
Visit Website
  • CFDTool Landing page
    Landing page //
    2023-04-20
  • 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.

Calcumber

$ 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

CFDTool features and specs

  • User-Friendly Interface
    CFDTool offers a highly intuitive and user-friendly interface, making it accessible to both beginners and experienced users without requiring extensive CFD knowledge.
  • Integrated with MATLAB
    The integration with MATLAB allows users to leverage powerful MATLAB capabilities for pre-processing, post-processing, and further analysis, enhancing productivity and broadening application scope.
  • Multiphysics Simulation
    CFDTool supports multiphysics simulations, which enables users to solve coupled heat transfer, fluid dynamics, and structural mechanics problems in a single environment.
  • Built-in Geometry and Mesh Generation
    The tool comes with built-in features for geometry creation and mesh generation, simplifying the setup of simulation models and reducing preparation time.
  • Extensive Documentation and Tutorials
    Extensive documentation along with tutorials and examples are available which can help users to quickly learn how to use the software and understand best practices.

Possible disadvantages of CFDTool

  • Limited Standalone Functionality
    CFDTool heavily relies on MATLAB, meaning users must have an appropriate MATLAB license, which could limit standalone use and increase costs.
  • Performance for Complex Simulations
    For highly complex simulations and large-scale problems, CFDTool might not perform as efficiently compared to more specialized CFD software packages.
  • Feature Limitations
    Although capable of handling a variety of simulations, it may not offer the depth of features for extremely specialized CFD tasks when compared to industry-standard solutions.
  • Cost
    While relatively affordable, the costs associated with necessary MATLAB licenses can make it a less attractive option for users looking for completely standalone and cheaper alternatives.

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

Category Popularity

0-100% (relative to CFDTool and Calcumber)
Numerical Computation
100 100%
0% 0
Math Calculators
0 0%
100% 100
Technical Computing
100 100%
0% 0
Math Solver
0 0%
100% 100

Questions & Answers

As answered by people managing CFDTool 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 CFDTool 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.

Simscale CFD - SimScale CFD is a cloud-based leading CAE platform that offers access to CFD, FEA, and thermodynamics simulation capabilities 100% via a standard web browser.

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.