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Learn to program Python for free

Numara Calculator
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Numi App
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Calculate in a notebook and share — from everyday math to engineering.

Which is more popular?
Based on our record, Invent With Python seems to be more popular. It has been mentioned 141 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | inventwithpython.com | calcumber.app |
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| Company | — | Startup from Switzerland · 1 - 9 employees · 2025 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Invent With Python yet.
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.
What each product offers, as listed by its team.


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


Overall verdict
Why this product is good
Recommended for
No analysis of Calcumber yet.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Invent With Python and Calcumber.
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 Invent With Python and Calcumber. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Created by Al Sweigart, author of Automate the Boring Stuff with Python, Invent with Python aims to make programming accessible, approachable, and fun, using Python as a powerful and beginner-friendly language. - Source: dev.to / 8 months ago
Not courses, but Al Sweigart's "Invent with Python" are excellent. (The two games books and code cracking are excellent to start with.) Https://inventwithpython.com/. Source: almost 3 years ago
Check /u/alsweigart' s books on Automate the Boring Stuff with Python and on Invent your own Computer Games with Python. Source: almost 3 years ago
Tracking Calcumber since Jul 2026.
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