
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.

DoorDash
Uber Eats
Postmates
Caviar
GrubHub
Zomato
Deliveroo
Seamless is an online food ordering service that is probably the most aptly named service in online food ordering service.

Which is more popular?
Based on our record, HackerRank seems to be a lot more popular than Seamless. While we know about 67 links to HackerRank, we've tracked only 3 mentions of Seamless.
Website, pricing, platforms and company facts side by side.
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| Website | hackerrank.com | seamless.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
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 Seamless. 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...
Seamless has now been acquired by GrubHub. Previously, it had the greatest market share among U.S. delivery companies. The user experience was great and the cost was reasonable. Users can select delivery restaurants...
Of course, none of the convenience and exposure that multi-restaurant online ordering platforms can give will come without costs. Food delivery apps like DoorDash, Amazon Delivery, and Seamless can end up taking...
Innovate3 Startups Racing to Become the Seamless of BoozeAlcohol delivery startups are popping up all over the country. Here are three with a good handle on the market.By Graham Winfrey@GrahamWinfreyCourtesy Companies
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
As the subject says when I try to sign into a site like seamless.com with my google account it doesn't go through. Have to use a new browser. I tried adding seamless.com and google.com to the allow list in cookies and site data but it... Source: over 3 years ago
I'd first go to slicelife.com or seamless.com to see which pizzerias are open at the time you want. Then I'd call and speak to someone to request your order before making any order online. I'm pretty sure there are a few joints around... Source: about 4 years ago
Seamless is another online ordering platform owned by grubhub/justeattakeaway, when someone orders from seamless.com or one of those stupid fake menus that grubhub makes for a restaurant, this is what comes up. Source: almost 5 years ago
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Practice and level up your development skills and prepare for technical interviews.
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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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CodeSignal is the leading assessment platform for technical hiring.
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Anything, anytime, anywhere. Postmate it. Food, drinks and groceries available for delivery or pickup.
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