
Duolingo
OptiLingo
eJOY for Chrome
MARQVISION
Mondly
Lingvo TV
Fluent
The most natural way to learn languages with what you see

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?
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | picklang.ml | calcumber.app |
| Pricing | — | |
| Platforms | — | |
| Company | — | Startup from Switzerland · 1 - 9 employees · 2025 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of PickLang 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
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing PickLang 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 PickLang and Calcumber. For example, how are they different and which one is better?
When comparing PickLang and Calcumber, you can also consider the following products.

Duolingo is a free language learning app for iOS, Windows and Android devices. The app makes learning a new language fun by breaking learning into small lessons where you can earn points and move up through the levels. Read more about Duolingo.
Compare Duolingo to PickLang or Calcumber:

A simple but powerful notepad calculator which evaluates expressions as you type.
Compare Numara Calculator to PickLang or Calcumber:

OptiLingo: Dreaming of Speaking a New Language?
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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 .
Compare SpeedCrunch to PickLang or Calcumber:

Learn English effortlessly with your favorite movies & news
Compare eJOY for Chrome to PickLang or Calcumber:

Qalculate! is a multiplatform multi-purpose desktop calculator.
Compare Qalculate! to PickLang or Calcumber: