
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.

Hunter.io
LeadIQ
AnyMailFinder.com
LeadFuze
Lusha
Clearbit
Snov.io
Norbert is an online tool that helps you to find anyone’s corporate email address.

Which is more popular?
Based on our record, HackerRank seems to be a lot more popular than Norbert. While we know about 67 links to HackerRank, we've tracked only 3 mentions of Norbert.
Website, pricing, platforms and company facts side by side.
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| Website | hackerrank.com | voilanorbert.com |
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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
Norbert is recommended for sales teams, marketers, recruiters, and anyone involved in outreach activities. It would particularly benefit professionals in need of building contact lists, verifying potential leads, and enhancing their overall communication strategy.
Walkthroughs and reviews on video.
Is HackerRank A Good Idea?
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using HackerRank and Norbert. 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...
We have no reviews of Norbert yet. Be the first one to post
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
I work with agencies and studios as well and cold mails work pretty well for me. Important is to not write to the common email adresses like [hello@whatever.com](mailto:hello@whatever.com). I used to get the linkedin premium account once... Source: over 3 years ago
Also don't underestimate the power of a cold email - you can quite easily find emails of relatively famous people (using tools like voilanorbert.com) - add value in the email (counter them with an opposing take on something they've said... Source: almost 4 years ago
Email Finder: Use something like voilanorbert.com. Source: over 5 years ago
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VP of Sales. Every second in sales counts. You hired your sales team to sell, not do data entry. LeadIQ will pump up your sales team with accurate prospect data and a smooth workflow so you can fill up your pipeline faster.
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CodeSignal is the leading assessment platform for technical hiring.
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