
TripleTen
Hack Club
Holberton School
Microverse
AlgoUniversity
Enlight
Woz U
A full Computer Science education - free until you get a job

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

Which is more popular?
Based on our record, Lambda School seems to be more popular. It has been mentioned 19 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | lambdaschool.com | calcumber.app |
| Pricing | — | |
| Platforms | — | |
| Company | Startup from the United States · 100 - 249 employees · 2017 | Startup from Switzerland · 1 - 9 employees · 2025 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Lambda School 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
Walkthroughs and reviews on video.
Lambda School Coding Bootcamp Worth The Money or SCAM
More videos
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How often each product is chosen within a category, 0–100% relative to the other.


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


Https://lambdaschool.com/ - a remote-first bootcamp that has a unique way of paying. No upfront cost, but they take a % of your salary when you get a job for the first two years until you pay their full cost. Worth reading up on some... Source: almost 5 years ago
Https://lambdaschool.com/ (these guys offer a free intro, might be good to test out and see if their style is to your liking.). Source: almost 5 years ago
While you don't need a boot camp, I highly recommend Lambda School (https://lambdaschool.com). They charge nothing upfront and you only pay them back (17% up to $30k) when you get a high paying job. They have great partnerships with... Source: almost 5 years ago
Tracking Calcumber since Jul 2026.
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Free and open source high school coding clubs 👊💥
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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 .
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High-quality software engineering education for the many
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Qalculate! is a multiplatform multi-purpose desktop calculator.
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