
HackerRank
CodeSignal
iMocha
HackerEarth
TestGorilla
DevSkiller
mettl
Codility provides a SaaS platform with advanced validation, security and protection features to evaluate the skills of software engineers.

Brilliant.org
EloMath
Khan Academy
Project Euler
LeetCode
mathigon
Math Expert: Master Equations
Practice olympiad-style math problems and compete against other users.

Which is more popular?
Based on our record, Codility seems to be more popular. It has been mentioned 2 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | codility.com | calcora.net |
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| Company | — | Startup from Switzerland · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


The Codility platform includes: CodeCheck - Design role-specific remote skills assessments to screen your technical candidates before moving them to the interview stage. CodeLive - Host technical remote or onsite interviews via our shared editor using a range of templates and whiteboards....
Calcora is a free platform for practicing math problems of all difficulty levels. Solve problems, maintain your streak, and compete with friends on the leaderboard. The Rules No Calculator. Solve every problem by hand. Mental math and working on paper are part of the challenge. No AI Assistance....
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 Codility yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
An Introduction to Codility: The Tech Hiring Platform for Engineering Teams
No Calcora.net videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Codility and Calcora.net. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Codility is a platform that helps companies assess the coding skills of developers. They offer a range of online coding tests and assessments that enable employers to evaluate candidates' technical abilities.
We have no reviews of Calcora.net yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


- Technical skills: have they got the walk to match the talk? Programming languages on a resume mean little if candidates are unable to demonstrate their hard coding skills. You can test these skills with technical skill tests, such as... - Source: dev.to / over 2 years ago
Codility : Verify and improve coding skills. - Source: dev.to / over 5 years ago
Tracking Calcora.net since Mar 2026.
When comparing Codility and Calcora.net, you can also consider the following products.

HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.
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Brilliant - Understand concepts and build your problem solving skills with thousands of free problems and examples in math, science, and engineering.
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CodeSignal is the leading assessment platform for technical hiring.
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Improve math skills with ranked practice, Elo-style ratings, topic lessons, timed challenges, progress stats, rewards, and a global leaderboard.
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Khan Academy offers online tools to help students learn about a variety of important school subjects. Tools include videos, practice exercises, and materials for instructors. Read more about Khan Academy.
Compare Khan Academy to Codility or Calcora.net: