
LeetCode
Codility
CodeSignal
iMocha
HackerEarth
Codewars
TestGorilla
HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.

Android
LineageOS
CalyxOS
GrapheneOS
Ubuntu Touch
Mobian
postmarketOS
/e/ is a fork of LineageOS that aims to be completely free of everything Google.

Which is more popular?
Based on our record, HackerRank should be more popular than e.foundation /e/. It has been mentioned 67 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | hackerrank.com | e.foundation |
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What each product offers, as listed by its team.


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


Overall verdict
Why this product is good
Recommended for
HackerRank is recommended for students, individual learners, and job seekers looking to improve their coding skills, as well as for companies seeking an efficient way to evaluate candidates' technical abilities during the hiring process.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
How often each product is chosen within a category, 0–100% relative to the other.


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


What are LeetCode and LeetCode alternatives good for?LeetCode💡Interested in leveling up your career? Apply to the Formation Fellowship...
HackerRank’s challenges cover a wide range of topics and difficulty levels, allowing developers to enhance their problem-solving skills and learn new algorithms and data structures. The competitive nature of...
HackerRank offers a wide array of challenges across various domains such as algorithms, mathematics, SQL, and functional programming. Its interface is user-friendly, and the platform provides detailed feedback on...
/e/ OS is completely open-source and has been developed by the non-profit /e/ Foundation which is based in France. Currently, it supports more than 240 smartphone models which include popular Samsung phones and some...
/e/ is in active development and you can try to install it on a range of devices already. You can even buy refurbished devices preinstalled with /e/. That is one of the several ways of supporting the /e/ project.
Recommendations tracked on public social media and blogs since March 2021.


This way, you transfer what you already know (problem-solving) but only change the syntax. Platforms like Hackerrank are also great to solve the same problem in different languages and learn from other people’s solutions. - Source: dev.to / about 1 year ago
Firstly, solve some common data structure problems with it. Implement some data structures like arrays, linked lists, stacks, queues, etc. You can check common problems on LeetCode, Hackerank or some other resources. - Source: dev.to / over 2 years ago
I don't have a consecutive internet connection and I can't keep up learning process so I started practicing in hackerrank.com I have started some challenges in python and c++ there. Thus I have no internet connection so I cannot practice... Source: almost 3 years ago
Yes and it has already been done: https://e.foundation/. - Source: Hacker News / 12 months ago
You might also check out /e/OS - https://e.foundation/ It's less hardened than Graphene, but more user-friendly (IMHO) and similarly avoids Google spyware. - Source: Hacker News / almost 2 years ago
> ...like LineageOS. But installing it is so difficult that only 1% of people have the technical know how to even attempt it... Aside: there is also /e/OS (or MurenaOS - their naming is inconsistent). It is basically LineageOS that... - Source: Hacker News / over 2 years ago
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