
Numara Calculator
SpeedCrunch
Qalculate!
Numi App
Soulver
Numby
Engineering Equation Solver
Calculate in a notebook and share — from everyday math to engineering.

Vue.js
Next.js
Svelte
Tailwind CSS
Angular.io
Node.js
AngularJS
A JavaScript library for building user interfaces
Which is more popular?
Based on our record, React seems to be more popular. It has been mentioned 818 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | calcumber.app | reactjs.org |
| Pricing | ||
| Platforms | — | |
| Company | Startup from Switzerland · 1 - 9 employees · 2025 | Startup from the United States |
| Listed in |
In their own words, as submitted to SaaSHub.


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.
No description of React yet.
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


No analysis of Calcumber yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
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What Is React?
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Calcumber and React.
Calcumber's answer
Calcumber's answer
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.
Calcumber's answer
Calcumber's answer
HTML, CSS, TypeScript, PWA, CoolProp
Calcumber's answer
Share your experience with using Calcumber and React. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


We have no reviews of Calcumber yet. Be the first one to post
ReactJS is a JavaScript based UI development library which is developed by Facebook. It is an open-source framework which is widely used by developers for web development. One of the major reasons why React.JS is...
React’s the cool kid on the block, turning heads since Facebook dropped it at our feet. Building dynamic user interfaces feels less like coding, more like crafting with this JavaScript library.
React uses a virtual DOM to optimize the performance of UI updates and follows a one-way data flow for easy tracking of data changes. With its active community and abundance of third-party resources and libraries,...
Recommendations tracked on public social media and blogs since March 2021.


Tracking Calcumber since Jul 2026.
Let's start by preparing a sample application that we want to place in a Docker image. This will be a web application created using the React framework and its create-react-app tool. It will generate a code template and configuration,... - Source: dev.to / about 1 year ago
Python integrates seamlessly with machine learning (TensorFlow, PyTorch) and data analytics stacks (Pandas). Node.js integrates better with frontend JS ecosystems like React, Vue, and Next.js. - Source: dev.to / 12 months ago
Dora AI exemplifies this. Allan Murphy Bruun adds, "What makes it different is its context-aware logic stitching that understands user flows beyond just UI elements." By analyzing Figma designs, it generates React code with state... - Source: dev.to / about 1 year ago
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A small framework for server-rendered universal JavaScript apps
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Qalculate! is a multiplatform multi-purpose desktop calculator.
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