Software Alternatives, Accelerators & Startups

Refocus VS Calcumber

Compare Refocus VS Calcumber and see what are their differences

Refocus logo Refocus

Saving 137M jobs from AI — the retraining platform for SEA

Calcumber logo Calcumber

Calculate in a notebook and share — from everyday math to engineering.
Visit Website
  • Refocus Landing page
    Landing page //
    2023-07-27
  • 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.

Refocus

Website
refocus.me
$ Details
-
Platforms
-
Release Date
-

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

Refocus features and specs

  • User-Friendly Interface
    Refocus offers a clean and intuitive user interface that makes it easy for users to navigate and use the application effectively.
  • Comprehensive Task Management
    The platform provides a wide range of task management features, allowing users to organize tasks, set priorities, and track progress efficiently.
  • Collaboration Tools
    Refocus includes collaboration features that enable teams to work together on projects, communicate effectively, and share resources seamlessly.
  • Customization Options
    Users can customize various settings and features to tailor the platform to their specific workflow needs, improving overall productivity.
  • Cross-Platform Support
    Refocus is available on multiple platforms, allowing users to access and manage their tasks from different devices and locations.

Possible disadvantages of Refocus

  • Learning Curve
    Despite its user-friendly design, new users might experience a learning curve while getting accustomed to all of the platform's features.
  • Cost
    Some users might find the subscription pricing of Refocus to be a bit high, especially for small teams or individuals.
  • Limited Offline Functionality
    The platform's functionality may be restricted when offline, which can be a drawback for users needing consistent access without internet connectivity.
  • Feature Overload
    While comprehensive, some users may find the extensive range of features overwhelming, particularly if they need a simple task management tool.
  • Occasional Performance Issues
    Users have reported occasional lag or performance slowdowns, particularly when working with large amounts of data or complex projects.

Calcumber features and specs

  • 🌿 Naturally type expressions
    get immediate results
  • 🔗 Copy and share
    keep calculations editable with a link
  • 🧩 Variables and constants
    pi, e, G, mu0
  • 🧪 Scientific functions
    sin, acos, log, round, and more
  • ♨️ Thermodynamic fluid properties
    refrigeration, heat pumps, steam and air
  • 💡 Installation optional
    run directly in your browser
  • 📱 Multi-platform
    WebApp, Windows, more to come

Refocus videos

Refocus Student Success Story Joshua 🔥

More videos:

  • Review - Refocus Student Joshua Cruz Shares His Secrets to Freelancing Success
  • Review - Refocus, Review and Rebuild.

Calcumber videos

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

Add video

Category Popularity

0-100% (relative to Refocus and Calcumber)
Education
100 100%
0% 0
Math Calculators
0 0%
100% 100
Online Learning
100 100%
0% 0
Math Solver
0 0%
100% 100

Questions & Answers

As answered by people managing Refocus 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

Share your experience with using Refocus and Calcumber. For example, how are they different and which one is better?
Log in or Post with

What are some alternatives?

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

GoIT LMS - Empowering emerging markets with high-quality tech education

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

Data Protocol - A better way to support developers

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 Donate .

Scrimba - Interactive coding screencasts created in an instant

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