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Calcumber VS shellreps

Compare Calcumber VS shellreps and see what are their differences

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Contents:
  1. ยป Base Details
  2. ยป Reviews
  3. ยป Alternatives

Calcumber logo Calcumber

Calculate in a notebook and share โ€” from everyday math to engineering.
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shellreps logo shellreps

Master PowerShell through hands-on, flag-based challenges in a real browser terminal. No setup, no install.
  • 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.

  • shellreps
    Image date //
    2026-07-26

Calcumber

Website
calcumber.app
$ 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
Edit details

shellreps

Website
shellreps.com
$ Details
paid Free Trial $5.0 / Monthly
Platforms
Web
Release Date
-
Edit details

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

shellreps features and specs

  • Practice PowerShell
    become a Windows power user
  • Interactive Labs
    practice with CTF labs

Category Popularity

0-100% (relative to Calcumber and shellreps)

Calcumber

shellreps

Education
50 50%
Education
50% 50
Engineering Calculator
100 100%
Engineering Calculator
0% 0
Cloud Management
0 0%
Cloud Management
100% 100
Math Solver
100 100%
Math Solver
0% 0

Questions & Answers

As answered by people managing Calcumber and shellreps.

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?

Calcumber's answer

Eastern Switzerland University of Applied Sciences

User comments

Share your experience with using Calcumber and shellreps. For example, how are they different and which one is better?
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What are some alternatives?

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

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

TryHackMe - TryHackMe is an online platform for learning and teaching cyber security, all through your 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 .

Powershell ISE - Technical articles, content and resources for IT Professionals working in Microsoft technologies

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

PowerShell Pro Tools - A suite of tools for PowerShell development, increasing productivty, building GUIs, and protecting your environment.

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