
DataLemur
Datacamp
HackerRank
Codecademy
PrepNPlaced
SkillVee
DataDriven.io
StrataScratch is a data science interview platform that has over 1000+ real interview questions from top tech companies like Facebook, Amazon, Google, and more.
Which is more popular?
Based on our record, LeetCode seems to be a lot more popular than StrataScratch. While we know about 544 links to LeetCode, we've tracked only 4 mentions of StrataScratch.
Website, pricing, platforms and company facts side by side.
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What each product offers, as listed by its team.


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An editorial look at what each product does well and who it suits.


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Why this product is good
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Walkthroughs and reviews on video.
Practice Writing SQL Queries on StrataScratch | How to Solve SQL Queries
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Is A LeetCode Premium Subscription Worth It?
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How often each product is chosen within a category, 0–100% relative to the other.


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


StrataScratch offers free data science interview questions and continues to release interview questions when they come out from companies. This ensures that you are always practicing your data science skills on...
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...
Recommendations tracked on public social media and blogs since March 2021.


StrataScratch is focused on providing data analysis/science resources needed to land a job and resources for the first few years of your career. It has 600+ coding questions from real interviews where you can use SQL, python, or R. It... Source: over 3 years ago
I learned off of Mode Analytics SQL tutorial. It's free and I use it as a reference when I forget syntax. From there, my learning style is to grind on practical questions that I would get as a data analyst. So I would recommend... Source: over 3 years ago
There was a comment here about using Leetcode, Hackerrank, SQL fiddle, etc to keep learning SQL. However, if you're aim is to go into data analytics you need to go beyond learning syntax and understand edge cases and business context.... Source: over 3 years ago
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 2 months 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 / 5 months ago
When comparing StrataScratch and LeetCode, you can also consider the following products.

Practice SQL Interview Questions & Data Science Interview Questions asked by FAANG.
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HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.
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DataCamp is a massive open online course (MooC) platform that helps everyone from novices to experts hone their skills with data science.
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Project Euler is a series of challenging mathematical/computer programming problems that will...
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Learn the technical skills you need for the job you want. As leaders in online education and learning to code, we’ve taught over 45 million people using a tested curriculum and an interactive learning environment.
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