
HackerRank
Project Euler
Codewars
Exercism
CodeForces
interviewing.io
Coderbyte
Practice and level up your development skills and prepare for technical interviews.

MailChimp
MailerLite
GetResponse
SendPulse
Brevo
Publicate
Listmonk
Sendy is a self hosted newsletter app that sends emails 100x cheaper via Amazon SES

Which is more popular?
Based on our record, LeetCode seems to be a lot more popular than Sendy. While we know about 544 links to LeetCode, we've tracked only 45 mentions of Sendy.
Website, pricing, platforms and company facts side by side.
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| Website | leetcode.com | sendy.co |
| Pricing | — | |
| Company | — | Startup from Singapore |
| 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
Overall verdict
Why this product is good
Recommended for
Sendy is particularly recommended for small to medium-sized businesses that have a tech-savvy team capable of handling hosting requirements, as well as those who are looking for a low-cost solution to send bulk emails efficiently.
Walkthroughs and reviews on video.
Is A LeetCode Premium Subscription Worth It?
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using LeetCode and Sendy. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


LeetCode is a renowned online platform offering a compendium of coding challenges that enable software developers to sharpen their programming prowess, facilitating their preparation for technical interviews. This...
What are LeetCode and LeetCode alternatives good for?LeetCode💡Interested in leveling up your career? Apply to the Formation Fellowship...
In the quest for coding excellence, developers often seek platforms that not only challenge their skills but also make the learning process engaging and fun. While Leetcode has been a staple in the coding community...
💸 cheapest Sendy: For a one-time fee, you can install the Sendy software on your own server and then affordably deliver emails via Amazon SES.
Separately, been keeping a list of Mailchimp alternatives. Sendfox works pretty well, and I plan to try out Sendy sometime soon.
Once you install Sendy on your own server, you’ll connect to Amazon SES to send the actual emails, which costs just $0.0001 per email (maybe an easier way to look at that is $1 per 10,000 emails). Plus, there’s no...
Recommendations tracked on public social media and blogs since March 2021.


General Coding Assessment (GCA): the harder of the two, but manageable with preparation. It's done on CodeSignal, either in person or online. To prepare, practice DSA questions on competitive programming sites like LeetCode, Codewars,... - Source: dev.to / about 1 month ago
Category Tool URL How I used it General AI assistant ChatGPT Https://chatgpt.com Breaking down concepts, simulating interviewers, reviewing answers AI writing / reasoning Claude Https://claude.ai Refining behavioral stories and... - Source: dev.to / 4 months ago
Plain BST. Fine when input is random or the problem doesn't require worst-case guarantees. Tree problems on LeetCode typically assume balanced input and don't ask you to maintain balance yourself. - Source: dev.to / 4 months ago
"Preferably using shadcn/react/supabase. I don't want to reinvent the wheel here." Respectfully, you don't need supabase for a landing page with waitlist especially when you don't want to reinvest the wheel. You have several options: 1.... - Source: Hacker News / over 1 year ago
What about https://sendy.co -- 1 million is about $100. - Source: Hacker News / almost 2 years ago
You can use https://listmonk.app or https://sendy.co and use a provider lke SES under the hood. - Source: Hacker News / almost 2 years ago
When comparing LeetCode and Sendy, you can also consider the following products.

HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.
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MailChimp is the best way to design, send, and share email newsletters.
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Project Euler is a series of challenging mathematical/computer programming problems that will...
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Affordable Email Marketing Software. Get all features (Segmentation, Automation, A/B testing) for up to 1,000 subscribers & send unlimited emails for free!
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Email marketing from GetResponse. Send email newsletters, campaigns, online surveys and follow-up autoresponders. Simple, easy interface. FREE sign up.
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