
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.

Nextdoor
Companion
Protechme
Wildfire
Guardians
Iris
Neighbors
Stay safe with instant alerts about nearby crime

Which is more popular?
Based on our record, HackerRank should be more popular than Citizen. It has been mentioned 67 times since March 2021.
Website, pricing, platforms and company facts side by side.
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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.
No analysis of Citizen yet.
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using HackerRank and Citizen. 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...
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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
A few months ago when there was a lot of emergency services activity in my area and I didn't know why, I was reminded that no-one in my region is contributing a feed to Broadcastify. I went down the tunnel of using SDR to recieve those... - Source: Hacker News / 12 months ago
Citizen does this (https://citizen.com) I used it for a bit, and it had decent UX, but it seems designed to raise your anxiety until you pay for a snake oil subscription. YMMV. - Source: Hacker News / over 2 years ago
I hear sirens! The Phoenix Fire Board is a real-time list of car accidents (Code '962'), fires, and hazardous situations. You can also check out the Citizen App that people use to report things happening around them. Source: about 3 years ago
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