
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.

Planet Express
Ship7
Shipito
MyUS
ShipCentral
Xpert Fulfillment
forward2me
OPAS is a package forwarding service that makes it easy for you to purchase products online from the USA and ship them to specified locations at an affordable price.

Which is more popular?
Based on our record, HackerRank seems to be a lot more popular than OPAS. While we know about 67 links to HackerRank, we've tracked only 4 mentions of OPAS.
Website, pricing, platforms and company facts side by side.
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| Website | hackerrank.com | opas.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.
No analysis of OPAS yet.
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 OPAS. 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...
Opas notably offers addresses in Japan and the US. This is a go-to package forwarding solution for online shopping in Japan and other countries near it. Although Opas charges higher, their forwarding services are top...
Opas provide a virtual shipping address for Japan and the US. Just like MyUS, they have three different packages offering different services. Their rates are higher than others, but their rating is as good like as...
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've used a few over the years but lately https://opas.com/ has been my go to. Really fast service, easy to use UI with multiple shipping options (depending on destination). From a cursory look they seem to ship to Japan. Source: almost 4 years ago
Try opas.com, a forwarding service that gives you a US address to order to. Cannot guarantee that they service Israel (I am in Sweden), but should do. Worked like a charm for me to get hold of a rare spare part for an old outboard motor... Source: about 4 years ago
I really rate OPAS (referral link, non referral link here). Multiple shipping options, fewer restrictions (Youshop won't handle Li-Ion batteries) and you get 20% off your first shipment. Source: about 4 years ago
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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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Ship7 is one of the leading package forwarding services that enable you to buy a product online and ship it from the USA & the UK to any country in the world.
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CodeSignal is the leading assessment platform for technical hiring.
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Shipito is a super fast and efficient package forwarding service that makes it easy for you to shop in the US and ship it to more than 220 countries.
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