
Matrix.org
Telegram
Signal
Discord
Tox
Slack
WhatsApp
Secure messaging app with strong end-to-end encryption, advanced group chat privacy settings, secure video calls for teams, encrypted communication using Matrix open network. Riot.im is now Element.

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.

Which is more popular?
Based on our record, HackerRank seems to be a lot more popular than Element.io. While we know about 67 links to HackerRank, we've tracked only 1 mention of Element.io.
Website, pricing, platforms and company facts side by side.
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| Website | about.riot.im | hackerrank.com |
| Pricing | — | |
| Company | Startup from the United Kingdom | — |
| Listed in |
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
Element.io is highly recommended for privacy-conscious users, open-source enthusiasts, tech-savvy individuals, organizations seeking secure internal communication channels, and communities needing decentralized and customizable messaging solutions.
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.
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 Element.io and HackerRank. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


You can get Element for both desktop and mobile, with apps being made available for Linux, Android, Windows, iOS, and macOS. There is also Element web if you don't prefer installing apps.
Element is a secure messaging and communication software that operates based on the Matrix protocol. It has advanced features that promote internal collaboration and boost team productivity. It offers end-to-end...
Element.io, which was earlier known as Riot, is a secure chat app that is built around protecting user privacy. It offers end-to-end encryption out of the box, which means that your conversations are fully encrypted...
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...
Recommendations tracked on public social media and blogs since March 2021.


I love how Matrix or its most popular client Element do not even get a mention. Source: over 3 years ago
The title undersells the change a bit in my opinion. By default, mastodon now encourages new users to sign-up on https://mastodon.social which has caused a bit of a kerfuffle in the fediverse. Personally, I'm largely ambivalent to the... - Source: Hacker News / over 3 years ago
We currently have the Matrix protocol, with client applications such as Element supporting it. We also have XMPP as another option. Generally more modern than IRC, these platforms are primarily developed as FOSS software. This makes it... Source: over 3 years ago
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
When comparing Element.io and HackerRank, you can also consider the following products.

Matrix is an open standard for decentralized persistent communication over IP.
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Practice and level up your development skills and prepare for technical interviews.
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Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
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Codility provides a SaaS platform with advanced validation, security and protection features to evaluate the skills of software engineers.
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Fast, simple & secure messaging. Privacy that fits in your pocket.
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CodeSignal is the leading assessment platform for technical hiring.
Compare CodeSignal to Element.io or HackerRank: