
LeetCode
Codility
CodeSignal
iMocha
Codewars
HackerEarth
TestGorilla
HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.
FlightAware
ADSBExchange
RadarBox
OpenSky Network
ADSB Hub
VariFlight
FlyView
Plane Finder is built on Automatic Dependent Surveillance – Broadcast (ADS-B) enabling the transmission of real-time data directly from, and to, aircraft.

Which is more popular?
HackerRank might be a bit more popular than Plane Finder. We know about 67 links to it since March 2021 and only 45 links to Plane Finder.
Website, pricing, platforms and company facts side by side.
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| Website | hackerrank.com | planefinder.net |
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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
Aviation enthusiasts, frequent travelers, aviation professionals, and anyone interested in tracking flights in real-time will find Plane Finder useful. It's also beneficial for people who want to receive timely updates about specific flights or enjoy discovering and learning about different aircraft.
Walkthroughs and reviews on video.
Is HackerRank A Good Idea?
More videos
Plane Finder 3D: Review & Demo
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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 Plane Finder. 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
I just checked https://planefinder.net/ and I didn't see anything flying near El Cajon from 9:05 to 9:20. Source: almost 3 years ago
Look them up on https://planefinder.net. Source: about 3 years ago
I just checked planefinder.net it said that the plane flew in the direction of Smolensk then carried on south west, is currently heading to Caspian Sea. Source: over 3 years ago
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Practice and level up your development skills and prepare for technical interviews.
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The world’s largest co-op of ADS-B/Mode S/MLAT feeders, and the world’s largest public source of unfiltered flight data. Access to worldwide flight tracking data for hobbyists, researchers, and journalists alike.
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CodeSignal is the leading assessment platform for technical hiring.
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Real-time flight tracking app with one of the best and most accurate coverage worldwide.
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